*, *::before, *::after { box-sizing: border-box; }
html { overflow-x: hidden; }

body {
    background-color: var(--color-bg);
    background-image: url('assets/background pattern.png');
    background-repeat: repeat;
    margin-left: 100px;
    margin-right: 100px;
    overflow-x: hidden;
}

@media (max-width: 768px) {
    body   { margin-left: 16px; margin-right: 16px; }
    .navbar { padding-left: 16px; padding-right: 16px; padding-top: 14px; padding-bottom: 14px; }
}
@media (max-width: 480px) {
    body   { margin-left: 12px; margin-right: 12px; }
    .navbar { padding-left: 12px; padding-right: 12px; padding-top: 12px; padding-bottom: 12px; }
}

:root {
  --font-display: "Momo Trust Display", sans-serif;
  --font-body: "LINE Seed JP", sans-serif;

  --color-bg: #f7fbff;
  --color-surface: #ffffff;
  --color-text: #152536;
  --color-muted: #52657a;
  --color-primary: #1f5cff;
  --color-border: #d9e6f7;
}

.momo-trust-display-regular {
  font-family: "Momo Trust Display", sans-serif;
  font-weight: 400;
  font-style: normal;
}

.line-seed-jp-thin {
  font-family: "LINE Seed JP", sans-serif;
  font-weight: 100;
  font-style: normal;
}

.line-seed-jp-regular {
  font-family: "LINE Seed JP", sans-serif;
  font-weight: 400;
  font-style: normal;
}

.line-seed-jp-bold {
  font-family: "LINE Seed JP", sans-serif;
  font-weight: 700;
  font-style: normal;
}

.line-seed-jp-extrabold {
  font-family: "LINE Seed JP", sans-serif;
  font-weight: 800;
  font-style: normal;
}

.navbar-logo img {
    height: auto;
    transform: scale(0.8);
    transform-origin: left center;
}

.navbar {
    position: sticky;
    top: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-left: 40px;
    padding-right: 40px;
    padding-top: 60px;
    padding-bottom: 20px;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 100;
}

.navbar-links {
    display: flex;
    gap: 30px;
}

.navbar-links a {
    color: var(--color-text);
    text-decoration: none;
    transition: color 0.2s ease;
}

.navbar-links a:hover {
    color: var(--color-primary);
}

.navbar-links a, .signup-btn {
    font-family: "LINE Seed JP", sans-serif;
    font-weight: 700;
    font-style: normal;
    font-size: 16px;
    color: #000000;
}

.signup-btn {
    background-color: var(--color-primary);
    color: #ffffff;
    text-decoration: none;
    padding: 10px 22px;
    border-radius: 5px;
    display: inline-block;
}

.navbar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* ── Mobile hamburger button ── */
.nav-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    z-index: 201;
}
.nav-hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all 0.2s;
}

/* ── Mobile menu panel ── */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: 200;
    background: rgba(0,0,0,0.18);
    padding-top: 80px;
}
.mobile-menu--open {
    display: flex;
    align-items: flex-start;
    justify-content: center;
}
.mobile-menu-nav {
    background: var(--color-surface);
    border: 2px solid var(--color-primary);
    border-radius: 16px;
    padding: 20px 16px;
    width: calc(100% - 32px);
    max-width: 360px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.mobile-menu-link {
    display: block;
    padding: 14px 18px;
    background: #fff;
    border: 1.5px solid var(--color-border);
    border-radius: 10px;
    font-family: "LINE Seed JP", sans-serif;
    font-size: 15px;
    font-weight: 700;
    color: var(--color-text);
    text-decoration: none;
    text-align: center;
    transition: background 0.15s;
}
.mobile-menu-link:hover { background: rgba(31,92,255,0.06); }

.mobile-menu-auth-btn {
    display: block;
    padding: 14px 18px;
    border-radius: 10px;
    font-family: "LINE Seed JP", sans-serif;
    font-size: 15px;
    font-weight: 700;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: opacity 0.2s;
    width: 100%;
}
.mobile-menu-auth-btn--signin {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}
.mobile-menu-auth-btn--signup,
.mobile-menu-auth-btn--logout {
    background: var(--color-primary);
    color: #fff;
}
.mobile-menu-auth-btn:hover { opacity: 0.85; }

@media (max-width: 768px) {
    .nav-hamburger  { display: flex; }
    .navbar-links   { display: none; }
    .navbar-right   { display: none; }
}

.profile-nav-btn {
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.profile-nav-icon {
    width: 42px;
    height: 42px;
    border-radius: 999px;
    background: var(--color-primary);
    color: #ffffff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: "LINE Seed JP", sans-serif;
    font-weight: 800;
    font-size: 14px;
    box-shadow: 0 10px 24px rgba(37, 92, 255, 0.22);
    transition: opacity 0.2s;
}

.profile-nav-icon:hover {
    opacity: 0.85;
}

.logout-nav-btn {
    border: 1px solid rgba(21, 37, 54, 0.16);
    background: #ffffff;
    color: var(--color-text);
    padding: 10px 14px;
    border-radius: 999px;
    font-family: "LINE Seed JP", sans-serif;
    font-weight: 700;
    font-size: 14px;
    cursor: pointer;
    transition: background 0.2s;
}

.logout-nav-btn:hover {
    background: #f0f4ff;
}

.api-error-msg {
    background: #fff3f3;
    border: 1px solid #f5c6c6;
    color: #b91c1c;
    border-radius: 8px;
    padding: 14px 18px;
    font-family: var(--font-body);
    font-size: 14px;
    margin: 20px 0;
}

.video-container {
    margin-top: 27px;
    margin-left: auto;
    margin-right: auto;
    width: 100%;
    max-width: 1320px;
}

.video-container video {
    width: 1320px;
    height: 381px;
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 5px;
}

.hero-section-img {
    width: 100%;
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 5px;
}

/* Hero video frame — YouTube embed cropped to cover the 3:1 hero placeholder */
.hero-video-frame {
    width: 100%;
    max-width: 100%;
    aspect-ratio: 12 / 5;
    border-radius: 5px;
    overflow: hidden;
    background: #eef6ff;
    position: relative;
    pointer-events: none;
}

.hero-video-frame video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
    display: block;
    border: 0;
    pointer-events: none;
}

/* Hero video — slightly taller frame on phones so the cinematic strip is not too short */
@media (max-width: 480px) {
    .hero-video-frame { aspect-ratio: 2 / 1; }
}

.hero-video-caption {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 13px;
    color: var(--color-muted);
    margin: 10px 0 0;
    text-align: center;
}

.hero-section {
    margin-top: 40px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-heading {
    font-family: "Momo Trust Display", sans-serif;
    font-weight: 400;
    font-size: 40px;
    color: var(--color-text);
    margin: 0 0 4px 0;
    line-height: 1.2;
}

.highlight-flow {
    color: #ffc107;
}

.hero-subheading {
    font-family: "LINE Seed JP", sans-serif;
    font-weight: 400;
    font-size: 25px;
    color: var(--color-primary);
    margin: 0 0 40px 0;
}

.hero-buttons {
    display: flex;
    gap: 29px;
}

.btn-primary, .btn-secondary {
    width: 245px;
    height: 49px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    border-radius: 5px;
    font-family: "LINE Seed JP", sans-serif;
    font-weight: 400;
    font-size: 16px;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: var(--color-primary);
    color: #ffffff;
}

.btn-primary:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(31, 92, 255, 0.35);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(31, 92, 255, 0.2);
}

.scroll-explore {
    margin-top: 60px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.scroll-text {
    font-family: "LINE Seed JP", sans-serif;
    font-weight: 400;
    font-size: 16px;
    color: var(--color-primary);
    margin: 0;
}

.scroll-arrow-box {
    width: 56px;
    height: 56px;
    border: 2px solid var(--color-primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    transition: all 0.3s ease;
    cursor: pointer;
}

.scroll-arrow-box:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(31, 92, 255, 0.2);
}

.about-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
    margin-top: 80px;
}

.about-label {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 16px;
    color: var(--color-primary);
    margin: 0 0 20px 0;
}

.about-heading {
    font-family: "Momo Trust Display", sans-serif;
    font-size: 48px;
    font-weight: 400;
    color: var(--color-text);
    margin: 0 0 30px 0;
    line-height: 1.2;
}

.about-description {
    border: 2px solid var(--color-border);
    border-radius: 8px;
    padding: 24px;
    margin-bottom: 24px;
}

.about-description p {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 16px;
    color: var(--color-primary);
    margin: 0;
    line-height: 1.6;
}

.about-note {
    border: 2px solid var(--color-border);
    border-radius: 8px;
    padding: 24px;
    margin-bottom: 30px;
}

.about-note p {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 16px;
    color: var(--color-primary);
    margin: 0 0 12px 0;
    line-height: 1.6;
}

.about-note p:last-child {
    margin-bottom: 0;
}

.btn-view-lessons {
    display: inline-block;
    background-color: var(--color-primary);
    color: #ffffff;
    padding: 12px 32px;
    border-radius: 6px;
    text-decoration: none;
    font-family: "LINE Seed JP", sans-serif;
    font-size: 16px;
    font-weight: 400;
    transition: all 0.3s ease;
}

.btn-view-lessons:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(31, 92, 255, 0.3);
}

.about-right {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.feature-card {
    border: 2.5px solid var(--color-primary);
    border-radius: 16px;
    padding: 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
}

.card-left {
    display: flex;
    gap: 20px;
    flex: 1;
    align-items: flex-start;
}

.card-number {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 32px;
    font-weight: 700;
    color: var(--color-primary);
    background-color: rgba(31, 92, 255, 0.1);
    width: 80px;
    height: 80px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.card-title {
    font-family: "Momo Trust Display", sans-serif;
    font-size: 24px;
    font-weight: 400;
    color: var(--color-primary);
    margin: 0 0 8px 0;
}

.card-description {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 15px;
    color: var(--color-primary);
    margin: 0;
    line-height: 1.5;
}

.card-icon {
    font-size: 48px;
    flex-shrink: 0;
}

.flight-path-section {
    margin-top: 100px;
    text-align: center;
}

.section-heading {
    font-family: "Momo Trust Display", sans-serif;
    font-size: 48px;
    font-weight: 400;
    color: var(--color-text);
    margin: 0 0 16px 0;
}

.section-subtext {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 18px;
    color: var(--color-muted);
    margin: 0 0 48px 0;
}

.flight-path-cards {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
    margin-bottom: 80px;
}

.path-card {
    border: 2px solid var(--color-primary);
    border-radius: 12px;
    padding: 20px 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.path-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(31, 92, 255, 0.2);
}

.path-icon {
    font-size: 28px;
}

.path-label {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 14px;
    color: var(--color-primary);
    font-weight: 500;
    text-align: center;
    line-height: 1.3;
}

.progress-section {
    background-color: var(--color-surface);
    padding: 60px 40px;
    border-radius: 8px;
    margin-bottom: 80px;
    text-align: left;
}

.progress-content {
    max-width: 860px;
    margin: 0 auto;
}

.progress-content-with-reel {
    max-width: 1120px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(260px, 360px);
    align-items: center;
    gap: 44px;
}

.progress-copy {
    min-width: 0;
}

.progress-description {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 16px;
    color: var(--color-text);
    max-width: 72ch;
    margin: 0 0 22px 0;
    line-height: 1.75;
}

.demo-reel {
    width: 100%;
    aspect-ratio: 9 / 16;
    border: 2px solid var(--color-primary);
    border-radius: 8px;
    overflow: hidden;
    background: var(--color-primary);
    box-shadow: 0 18px 36px rgba(31, 92, 255, 0.16);
}

.demo-reel iframe {
    width: 100%;
    height: 100%;
    border: 0;
    display: block;
}

.progress-buttons {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 24px;
}

.btn-progress-primary, .btn-progress-secondary {
    padding: 14px 32px;
    border-radius: 6px;
    font-family: "LINE Seed JP", sans-serif;
    font-size: 16px;
    font-weight: 400;
    text-decoration: none;
    display: inline-block;
    width: fit-content;
    transition: all 0.3s ease;
}

.btn-progress-primary {
    background-color: var(--color-primary);
    color: #ffffff;
}

.btn-progress-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(31, 92, 255, 0.3);
}

.btn-progress-secondary {
    background-color: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-progress-secondary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(31, 92, 255, 0.2);
}

.progress-hint {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 14px;
    color: var(--color-muted);
    margin: 0;
}

.footer {
    background-color: var(--color-surface);
    padding: 40px;
    margin-top: 80px;
}

.footer-top {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-bottom: 24px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-logo-icon {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.footer-logo-text {
    font-family: "Momo Trust Display", sans-serif;
    font-size: 20px;
    font-weight: 400;
    color: var(--color-text);
}

.footer-tagline p {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 14px;
    color: var(--color-muted);
    margin: 0;
}

.footer-divider {
    height: 1px;
    background-color: var(--color-border);
    margin: 24px 0;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    gap: 40px;
}

.footer-description {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 14px;
    color: var(--color-muted);
    margin: 0;
    flex: 1;
    line-height: 1.6;
}

.footer-nav {
    display: flex;
    gap: 24px;
}

.footer-nav a {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 14px;
    color: var(--color-text);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-nav a:hover {
    color: var(--color-primary);
}

.footer-copyright {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 12px;
    color: var(--color-muted);
    text-align: center;
}

.footer-copyright p {
    margin: 0;
}

/* ── Lessons Page ─────────────────────────────────────── */

.navbar-links a.active {
    color: var(--color-primary);
}

.lessons-header {
    margin-top: 48px;
    margin-bottom: 48px;
}

.lessons-heading {
    font-family: "Momo Trust Display", sans-serif;
    font-size: 48px;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 0 16px 0;
}

.lessons-subheading {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 20px;
    font-weight: 400;
    color: var(--color-primary);
    margin: 0;
    max-width: 780px;
    line-height: 1.5;
}

.aircraft-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 80px;
}

.aircraft-card {
    border: 2px solid var(--color-primary);
    border-radius: 16px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    background-color: var(--color-surface);
}

.aircraft-card--coming {
    border-color: var(--color-border);
    opacity: 0.6;
}

.aircraft-card--more {
    border-color: var(--color-primary);
    align-items: center;
    justify-content: center;
}

.aircraft-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 6px;
    font-family: "LINE Seed JP", sans-serif;
    font-size: 13px;
    font-weight: 700;
    width: fit-content;
}

.aircraft-badge--available {
    background-color: var(--color-primary);
    color: #ffffff;
}

.aircraft-badge--coming {
    background-color: #e0e0e0;
    color: #888888;
}

.aircraft-name {
    font-family: "Momo Trust Display", sans-serif;
    font-size: 32px;
    font-weight: 400;
    margin: 0;
    line-height: 1.1;
}

.aircraft-name--available {
    color: var(--color-primary);
}

.aircraft-name--coming {
    color: #b0b8c1;
}

.aircraft-image-wrap {
    width: 100%;
    border-radius: 8px;
    overflow: hidden;
}

.aircraft-image {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
}

.aircraft-image-wrap--placeholder {
    height: 140px;
    background-color: #e8e8e8;
    border-radius: 8px;
}

.aircraft-description {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 15px;
    font-weight: 700;
    color: var(--color-text);
    margin: 0;
    line-height: 1.5;
    flex: 1;
}

.aircraft-desc-placeholder {
    height: 48px;
    background-color: #e8e8e8;
    border-radius: 6px;
    flex: 1;
}

.btn-start-lesson {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-primary);
    color: #ffffff;
    text-decoration: none;
    padding: 12px;
    border-radius: 8px;
    font-family: "LINE Seed JP", sans-serif;
    font-size: 15px;
    font-weight: 700;
    transition: all 0.3s ease;
}

.btn-start-lesson:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(31, 92, 255, 0.3);
}

.btn-coming-soon {
    padding: 12px;
    border-radius: 8px;
    border: none;
    background-color: #e0e0e0;
    color: #888888;
    font-family: "LINE Seed JP", sans-serif;
    font-size: 15px;
    font-weight: 700;
    cursor: not-allowed;
}

.aircraft-more-text {
    font-family: "Momo Trust Display", sans-serif;
    font-size: 28px;
    font-weight: 400;
    color: var(--color-primary);
    text-align: center;
    margin: 0;
    line-height: 1.3;
}

/* ── Hash View Switching ──────────────────────────────── */

.hidden {
    display: none !important;
}

/* ── A320 Lesson Overview View ───────────────────────── */

.lesson-overview-header {
    margin-top: 40px;
    margin-bottom: 32px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.back-link {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 16px;
    font-weight: 400;
    color: var(--color-primary);
    text-decoration: none;
    width: fit-content;
    transition: opacity 0.2s ease;
}

.back-link:hover {
    opacity: 0.7;
}

.lesson-path-badge {
    display: inline-block;
    border: 1.5px solid var(--color-primary);
    border-radius: 20px;
    padding: 4px 16px;
    font-family: "LINE Seed JP", sans-serif;
    font-size: 13px;
    color: var(--color-primary);
    width: fit-content;
}

.lesson-main-heading {
    font-family: "Momo Trust Display", sans-serif;
    font-size: 48px;
    font-weight: 400;
    color: var(--color-text);
    margin: 0;
    line-height: 1.15;
}

.lesson-disclaimer {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 13px;
    color: var(--color-muted);
    margin: 0;
}

.lesson-overview-card {
    border: 2px solid var(--color-primary);
    border-radius: 16px;
    padding: 32px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    align-items: center;
    margin-bottom: 40px;
    background-color: var(--color-surface);
}

.lesson-overview-left {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.selected-lesson-badge {
    display: inline-block;
    background-color: rgba(31, 92, 255, 0.1);
    color: var(--color-primary);
    font-family: "LINE Seed JP", sans-serif;
    font-size: 13px;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 6px;
    width: fit-content;
}

.lesson-overview-title {
    font-family: "Momo Trust Display", sans-serif;
    font-size: 36px;
    font-weight: 400;
    color: var(--color-text);
    margin: 0;
}

.lesson-overview-desc {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 15px;
    color: var(--color-muted);
    margin: 0;
    line-height: 1.6;
}

.btn-overview-start {
    display: inline-block;
    background-color: rgba(31, 92, 255, 0.1);
    color: var(--color-primary);
    text-decoration: none;
    padding: 12px 28px;
    border-radius: 8px;
    font-family: "LINE Seed JP", sans-serif;
    font-size: 15px;
    font-weight: 700;
    width: fit-content;
    transition: all 0.3s ease;
}

.btn-overview-start:hover {
    background-color: var(--color-primary);
    color: #ffffff;
    transform: translateY(-2px);
}

/* ── Lesson Resources ─────────────────────────────────── */

.lesson-resources {
    border: 2px solid var(--color-primary);
    border-radius: 16px;
    padding: 32px;
    margin-bottom: 80px;
    background-color: var(--color-surface);
}

.lesson-resources-heading {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 22px;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 0 24px 0;
}

.resources-grid {
    columns: 5 280px;
    column-gap: 24px;
}

.resources-col {
    display: flex;
    flex-direction: column;
    gap: 12px;
    break-inside: avoid;
    margin-bottom: 24px;
}

.resources-col-title {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 15px;
    font-weight: 700;
    color: var(--color-text);
    margin: 0;
    text-align: left;
}

.resource-btn {
    display: block;
    background-color: var(--color-primary);
    color: #ffffff;
    text-decoration: none;
    padding: 10px 16px;
    border-radius: 8px;
    font-family: "LINE Seed JP", sans-serif;
    font-size: 14px;
    font-weight: 400;
    text-align: center;
    transition: all 0.2s ease;
}

.resource-btn:hover {
    opacity: 0.85;
    transform: translateY(-2px);
}

/* ── Lesson Resources — resource items ── */
.resource-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 14px;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    background-color: var(--color-bg);
}

.resource-item-title {
    margin: 0;
    font-family: "LINE Seed JP", sans-serif;
    font-size: 14px;
    font-weight: 700;
    color: var(--color-text);
}

.resource-item-desc {
    margin: 0;
    font-family: "LINE Seed JP", sans-serif;
    font-size: 12px;
    font-weight: 400;
    line-height: 1.5;
    color: var(--color-muted);
}

.resource-btn--disabled {
    background-color: var(--color-border);
    color: var(--color-muted);
    cursor: not-allowed;
}

.resource-btn--disabled:hover {
    opacity: 1;
    transform: none;
}

/* ── Lesson Step View ─────────────────────────────────── */

.lesson-step-header {
    margin-top: 40px;
    margin-bottom: 24px;
}

.lesson-step-tabs {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 32px;
}

.lesson-tab {
    padding: 10px 20px;
    border: 2px solid var(--color-primary);
    border-radius: 8px;
    background-color: transparent;
    color: var(--color-primary);
    font-family: "LINE Seed JP", sans-serif;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
}

.lesson-tab:hover {
    background-color: rgba(31, 92, 255, 0.08);
}

.lesson-tab--active {
    background-color: var(--color-primary);
    color: #ffffff;
}

.lesson-tab--locked {
    opacity: 0.4;
    cursor: not-allowed;
    border-color: var(--color-border);
    color: var(--color-muted);
    background: transparent;
}

.lesson-step-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 80px;
    align-items: start;
}

.lesson-step-left {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.lesson-step-title-row {
    display: flex;
    align-items: center;
    gap: 16px;
}

.lesson-step-title {
    font-family: "Momo Trust Display", sans-serif;
    font-size: 32px;
    font-weight: 400;
    color: var(--color-text);
    margin: 0;
}

.lesson-checklist-card {
    border: 2px solid var(--color-border);
    border-radius: 12px;
    padding: 28px;
}

.checklist-heading {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 0 20px 0;
}

.checklist-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.checklist-item {
    display: flex;
    align-items: center;
    gap: 14px;
    font-family: "LINE Seed JP", sans-serif;
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text);
}

.checklist-checkbox {
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-border);
    border-radius: 4px;
    cursor: pointer;
    flex-shrink: 0;
    accent-color: var(--color-primary);
}

.btn-mark-complete {
    padding: 14px;
    border: 2px solid var(--color-primary);
    border-radius: 10px;
    background-color: transparent;
    color: var(--color-primary);
    font-family: "LINE Seed JP", sans-serif;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-mark-complete:hover:not(:disabled) {
    background-color: var(--color-primary);
    color: #ffffff;
    transform: translateY(-2px);
}

.btn-mark-complete:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    border-color: var(--color-border);
    color: var(--color-muted);
}

.lesson-step-right {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.lesson-video-label {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 14px;
    font-weight: 700;
    color: var(--color-text);
    margin: 0;
}

.lesson-video-title {
    font-family: "Momo Trust Display", sans-serif;
    font-size: 24px;
    font-weight: 400;
    color: var(--color-text);
    margin: 0 0 8px 0;
}

/* ── Auth Pages ───────────────────────────────────────── */

/* Lessons auth gate */
.lessons-blurred {
    filter: blur(6px);
    pointer-events: none;
    user-select: none;
}

.lessons-gate-overlay {
    position: fixed;
    inset: 0;
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(2px);
}

.lessons-gate-card {
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: 20px;
    padding: 48px 40px;
    max-width: 440px;
    width: 100%;
    text-align: center;
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.3);
}

.lessons-gate-icon {
    font-size: 40px;
    margin-bottom: 16px;
}

.lessons-gate-heading {
    font-family: "Momo Trust Display", sans-serif;
    font-size: 28px;
    font-weight: 400;
    color: var(--color-text);
    margin: 0 0 12px 0;
}

.lessons-gate-sub {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 14px;
    color: var(--color-muted);
    line-height: 1.6;
    margin: 0 0 28px 0;
}

.lessons-gate-btns {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.lessons-gate-btn-primary {
    background: var(--color-primary);
    color: #fff;
    font-family: "LINE Seed JP", sans-serif;
    font-size: 14px;
    font-weight: 700;
    padding: 12px 28px;
    border-radius: 8px;
    text-decoration: none;
    transition: opacity 0.2s;
}

.lessons-gate-btn-primary:hover { opacity: 0.88; }

.lessons-gate-btn-secondary {
    background: transparent;
    color: var(--color-primary);
    font-family: "LINE Seed JP", sans-serif;
    font-size: 14px;
    font-weight: 700;
    padding: 12px 28px;
    border-radius: 8px;
    border: 2px solid var(--color-primary);
    text-decoration: none;
    transition: opacity 0.2s;
}

.lessons-gate-btn-secondary:hover { opacity: 0.75; }

.lessons-gate-back {
    display: block;
    margin: 18px auto 0;
    background: none;
    border: none;
    color: var(--color-muted);
    font-family: "LINE Seed JP", sans-serif;
    font-size: 13px;
    cursor: pointer;
    transition: color 0.2s;
}

.lessons-gate-back:hover { color: var(--color-text); }

.auth-section {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
}

.auth-card {
    background-color: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: 16px;
    padding: 48px;
    width: 100%;
    max-width: 460px;
}

.auth-heading {
    font-family: "Momo Trust Display", sans-serif;
    font-size: 36px;
    font-weight: 400;
    color: var(--color-text);
    margin: 0 0 8px 0;
}

.auth-subheading {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 15px;
    color: var(--color-muted);
    margin: 0 0 32px 0;
}

.auth-error {
    background-color: #fff0f0;
    border: 1.5px solid #ffb3b3;
    border-radius: 8px;
    padding: 12px 16px;
    font-family: "LINE Seed JP", sans-serif;
    font-size: 14px;
    color: #cc0000;
    margin-bottom: 20px;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-label {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 14px;
    font-weight: 700;
    color: var(--color-text);
    display: block;
    width: 100%;
}

.form-input {
    padding: 12px 16px;
    border: 2px solid var(--color-border);
    border-radius: 8px;
    font-family: "LINE Seed JP", sans-serif;
    font-size: 15px;
    color: var(--color-text);
    background-color: var(--color-bg);
    outline: none;
    transition: border-color 0.2s ease;
    width: 100%;
    box-sizing: border-box;
}

.form-input:focus {
    border-color: var(--color-primary);
}

.btn-auth {
    padding: 14px;
    background-color: var(--color-primary);
    color: #ffffff;
    border: none;
    border-radius: 8px;
    font-family: "LINE Seed JP", sans-serif;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 4px;
}

.btn-auth:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

.btn-auth:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.auth-switch {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 14px;
    color: var(--color-muted);
    text-align: center;
    margin: 24px 0 0 0;
}

.auth-switch a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 700;
}

/* ── My Progress Page ─────────────────────────────────── */

.progress-page {
    padding: 48px 0 80px;
}

.progress-page-header {
    margin-bottom: 40px;
}

.progress-page-heading {
    font-family: "Momo Trust Display", sans-serif;
    font-size: 48px;
    font-weight: 400;
    color: var(--color-text);
    margin: 0 0 8px 0;
}

.progress-page-sub {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 16px;
    color: var(--color-muted);
    margin: 0;
}

.progress-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 24px;
    align-items: start;
}

.progress-user-card {
    border: 2px solid var(--color-border);
    border-radius: 16px;
    padding: 32px;
    background-color: var(--color-surface);
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.progress-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background-color: rgba(31, 92, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: "Momo Trust Display", sans-serif;
    font-size: 28px;
    color: var(--color-primary);
}

.progress-user-name {
    font-family: "Momo Trust Display", sans-serif;
    font-size: 24px;
    font-weight: 400;
    color: var(--color-text);
    margin: 0;
}

.progress-user-email {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 14px;
    color: var(--color-muted);
    margin: 0;
}

.progress-main-card {
    border: 2px solid var(--color-primary);
    border-radius: 16px;
    padding: 32px;
    background-color: var(--color-surface);
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.progress-aircraft-label {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 13px;
    font-weight: 700;
    color: var(--color-primary);
    background-color: rgba(31, 92, 255, 0.1);
    padding: 4px 12px;
    border-radius: 6px;
    width: fit-content;
}

.progress-aircraft-title {
    font-family: "Momo Trust Display", sans-serif;
    font-size: 32px;
    font-weight: 400;
    color: var(--color-text);
    margin: 0;
}

.progress-bar-wrap {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.progress-bar-label {
    display: flex;
    justify-content: space-between;
    font-family: "LINE Seed JP", sans-serif;
    font-size: 14px;
    color: var(--color-muted);
}

.progress-bar-track {
    width: 100%;
    height: 10px;
    background-color: var(--color-border);
    border-radius: 999px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background-color: var(--color-primary);
    border-radius: 999px;
    transition: width 0.6s ease;
}

.progress-status-badge {
    display: inline-block;
    padding: 4px 14px;
    border-radius: 20px;
    font-family: "LINE Seed JP", sans-serif;
    font-size: 13px;
    font-weight: 700;
    width: fit-content;
}

.progress-status-badge--not-started { background-color: #f0f0f0; color: #888; }
.progress-status-badge--in-progress { background-color: rgba(31,92,255,0.1); color: var(--color-primary); }
.progress-status-badge--completed   { background-color: #e6f9ed; color: #1a7a3c; }

.progress-current-lesson {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 15px;
    color: var(--color-text);
    margin: 0;
}

.progress-current-lesson span {
    font-weight: 700;
    color: var(--color-primary);
}

.progress-completed-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.progress-completed-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: "LINE Seed JP", sans-serif;
    font-size: 14px;
    color: var(--color-text);
}

.progress-check-icon {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: #1a7a3c;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: #ffffff;
    font-size: 11px;
}

.btn-continue-lesson {
    display: inline-block;
    background-color: var(--color-primary);
    color: #ffffff;
    text-decoration: none;
    padding: 14px 32px;
    border-radius: 8px;
    font-family: "LINE Seed JP", sans-serif;
    font-size: 15px;
    font-weight: 700;
    transition: all 0.3s ease;
    width: fit-content;
}

.btn-continue-lesson:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

/* ── Lesson Step View ─────────────────────────────────── */

.lesson-step-header {
    margin-top: 40px;
    margin-bottom: 24px;
}

.lesson-step-tabs {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.lesson-tab {
    padding: 10px 20px;
    border: 2px solid var(--color-primary);
    border-radius: 8px;
    background-color: transparent;
    color: var(--color-primary);
    font-family: "LINE Seed JP", sans-serif;
    font-size: 14px;
    font-weight: 400;
    cursor: pointer;
    transition: all 0.2s ease;
}

.lesson-tab:hover {
    background-color: rgba(31, 92, 255, 0.08);
}

.lesson-tab--active {
    background-color: var(--color-primary);
    color: #ffffff;
}

.lesson-tab--locked {
    opacity: 0.4;
    cursor: not-allowed;
    border-color: var(--color-border);
    color: var(--color-muted);
    background: transparent;
}

.lesson-step-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 80px;
    align-items: start;
}

.lesson-step-title-row {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.lesson-step-title {
    font-family: "Momo Trust Display", sans-serif;
    font-size: 32px;
    font-weight: 400;
    color: var(--color-text);
    margin: 0;
}

.lesson-checklist-card {
    border: 2px solid var(--color-border);
    border-radius: 12px;
    padding: 28px;
    margin-bottom: 24px;
}

.checklist-heading {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 0 20px 0;
}

.checklist-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.checklist-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: "LINE Seed JP", sans-serif;
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text);
}

.checklist-checkbox {
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-border);
    border-radius: 4px;
    cursor: pointer;
    flex-shrink: 0;
    accent-color: var(--color-primary);
}

.btn-mark-complete {
    width: 100%;
    padding: 16px;
    border: 2px solid var(--color-primary);
    border-radius: 10px;
    background-color: transparent;
    color: var(--color-primary);
    font-family: "LINE Seed JP", sans-serif;
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-mark-complete:hover:not(:disabled) {
    background-color: var(--color-primary);
    color: #ffffff;
    transform: translateY(-2px);
}

.btn-mark-complete:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    border-color: var(--color-border);
    color: var(--color-muted);
}

.lesson-video-label {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 14px;
    color: var(--color-muted);
    margin: 0 0 4px 0;
}

.lesson-video-title {
    font-family: "Momo Trust Display", sans-serif;
    font-size: 24px;
    font-weight: 400;
    color: var(--color-text);
    margin: 0 0 16px 0;
}

/* ============================================================
   MY PROGRESS PAGE — pg-* namespace
   ============================================================ */

.pg-wrap {
    max-width: 1100px;
    margin: 0 auto;
    padding: 48px 24px 80px;
}

.pg-header { margin-bottom: 32px; }

.pg-breadcrumb {
    font-family: 'LINE Seed JP', sans-serif;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--color-muted);
    text-transform: uppercase;
    display: block;
    margin-bottom: 6px;
}
.pg-h1 {
    font-family: 'Momo Trust Display', sans-serif;
    font-size: 36px;
    color: var(--color-text);
    margin: 0 0 6px;
}
.pg-sub {
    font-family: 'LINE Seed JP', sans-serif;
    font-size: 15px;
    color: var(--color-muted);
    margin: 0;
}

.pg-row { display: grid; gap: 20px; margin-bottom: 20px; }
.pg-row--top { grid-template-columns: 1fr 1fr; }
.pg-row--mid { grid-template-columns: 3fr 2fr; }

/* Learner card */
.pg-learner-card {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: 14px;
    padding: 28px;
}
.pg-learner-inner { display: flex; align-items: flex-start; gap: 16px; }
.pg-avatar-wrap   { position: relative; flex-shrink: 0; }
.pg-avatar {
    width: 52px; height: 52px;
    border-radius: 50%;
    background: var(--color-primary);
    color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-family: 'Momo Trust Display', sans-serif;
    font-size: 18px; font-weight: 700;
    box-shadow: 0 2px 8px rgba(31,92,255,0.2);
}
.pg-avatar-dot {
    position: absolute; bottom: 2px; right: 2px;
    width: 12px; height: 12px;
    background: #22c55e; border-radius: 50%; border: 2px solid #fff;
}
.pg-learner-info { flex: 1; }
.pg-learner-name {
    font-family: 'Momo Trust Display', sans-serif;
    font-size: 20px; color: var(--color-text); margin: 0 0 4px;
}
.pg-learner-meta {
    font-family: 'LINE Seed JP', sans-serif;
    font-size: 13px; color: var(--color-muted); margin: 0 0 12px;
}
.pg-tag-row { display: flex; flex-wrap: wrap; gap: 8px; }
.pg-tag {
    font-family: 'LINE Seed JP', sans-serif;
    font-size: 12px; font-weight: 700;
    padding: 4px 10px; border-radius: 20px; border: 1px solid transparent;
    white-space: nowrap;
}
.pg-tag--aircraft   { background: rgba(31,92,255,0.08); color: var(--color-primary); border-color: rgba(31,92,255,0.2); }
.pg-tag--rank       { background: rgba(180,83,9,0.08);  color: #92400e; border-color: rgba(180,83,9,0.2); }
.pg-tag--rank.rank--beginner  { background: rgba(31,92,255,0.06); color: var(--color-primary); border-color: rgba(31,92,255,0.15); }
.pg-tag--rank.rank--bronze    { background: rgba(180,83,9,0.08);  color: #92400e; border-color: rgba(180,83,9,0.2); }
.pg-tag--rank.rank--silver    { background: rgba(100,116,139,0.1); color: #475569; border-color: rgba(100,116,139,0.3); }
.pg-tag--rank.rank--gold      { background: rgba(217,119,6,0.1);  color: #b45309; border-color: rgba(217,119,6,0.25); }
.pg-tag--rank.rank--platinum  { background: rgba(124,58,237,0.08); color: #5b21b6; border-color: rgba(124,58,237,0.2); }
.pg-tag--saved      { background: rgba(22,163,74,0.08); color: #15803d; border-color: rgba(22,163,74,0.2); }
.pg-tag--status-notstarted { background: rgba(82,101,122,0.1); color: var(--color-muted);   border-color: rgba(82,101,122,0.2); }
.pg-tag--status-inprogress { background: rgba(31,92,255,0.08); color: var(--color-primary); border-color: rgba(31,92,255,0.2); }
.pg-tag--status-completed  { background: rgba(22,163,74,0.1);  color: #16a34a;              border-color: rgba(22,163,74,0.2); }

/* Stats 2×2 */
.pg-stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.pg-stat-card {
    background: #fff; border: 1px solid var(--color-border);
    border-radius: 14px; padding: 20px;
}
.pg-stat-label {
    font-family: 'LINE Seed JP', sans-serif;
    font-size: 11px; font-weight: 700; letter-spacing: 0.1em;
    text-transform: uppercase; color: var(--color-muted); margin: 0 0 6px;
}
.pg-stat-big {
    font-family: 'Momo Trust Display', sans-serif;
    font-size: 32px; color: var(--color-text); margin: 0 0 6px; line-height: 1;
}
.pg-stat-sub { font-family: 'LINE Seed JP', sans-serif; font-size: 13px; color: var(--color-muted); margin: 0; }

.pg-bar-track { height: 6px; background: var(--color-border); border-radius: 99px; overflow: hidden; margin-top: 8px; }
.pg-bar-fill  { height: 100%; background: var(--color-primary); border-radius: 99px; transition: width 0.5s ease; }

.pg-status-pill {
    display: inline-block;
    font-family: 'LINE Seed JP', sans-serif;
    font-size: 13px; font-weight: 700;
    padding: 5px 12px; border-radius: 20px; margin-top: 6px;
}
.pg-status--notstarted { background: rgba(82,101,122,0.1);  color: var(--color-muted); }
.pg-status--inprogress { background: rgba(31,92,255,0.08);  color: var(--color-primary); }
.pg-status--completed  { background: rgba(22,163,74,0.1);   color: #16a34a; }

/* Aircraft card */
.pg-aircraft-card {
    background: #fff; border: 1px solid var(--color-border);
    border-radius: 14px; padding: 28px;
}
.pg-aircraft-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.pg-aircraft-title  { font-family: 'Momo Trust Display', sans-serif; font-size: 17px; color: var(--color-text); margin: 0 0 4px; }
.pg-aircraft-sub    { font-family: 'LINE Seed JP', sans-serif; font-size: 13px; color: var(--color-muted); margin: 0; }
.pg-avail-badge {
    flex-shrink: 0;
    font-family: 'LINE Seed JP', sans-serif; font-size: 12px; font-weight: 700;
    color: #16a34a; background: rgba(22,163,74,0.08); border: 1px solid rgba(22,163,74,0.2);
    padding: 4px 10px; border-radius: 20px;
}
.pg-bar-track--aircraft { margin: 16px 0 24px; height: 8px; }

/* Lesson list */
.pg-lesson-list { display: flex; flex-direction: column; gap: 4px; margin-bottom: 24px; }
.pg-lesson-row {
    display: flex; align-items: center; gap: 12px;
    padding: 10px 14px; border-radius: 8px;
    font-family: 'LINE Seed JP', sans-serif;
    border: 1px solid transparent;
}
.pg-lesson-row--current { background: rgba(31,92,255,0.04); border-color: rgba(31,92,255,0.12); }
.pg-lesson-row--pending { opacity: 0.55; }
.pg-lesson-icon { font-size: 14px; width: 20px; text-align: center; flex-shrink: 0; }
.pg-lesson-icon--done    { color: #16a34a; }
.pg-lesson-icon--current { color: var(--color-primary); }
.pg-lesson-icon--pending { color: var(--color-muted); font-size: 12px; }
.pg-lesson-title         { flex: 1; font-size: 14px; color: var(--color-text); }
.pg-lesson-row--pending .pg-lesson-title { color: var(--color-muted); }
.pg-lesson-status        { font-size: 13px; font-weight: 700; }
.pg-lesson-status--done    { color: var(--color-primary); }
.pg-lesson-status--current { color: var(--color-primary); }
.pg-lesson-status--pending { color: var(--color-muted); }

/* Buttons */
.pg-aircraft-btns { display: flex; gap: 12px; }
.pg-btn-continue {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 12px 24px; background: var(--color-primary); color: #fff;
    border-radius: 8px; font-family: 'LINE Seed JP', sans-serif;
    font-size: 14px; font-weight: 700; text-decoration: none; transition: background 0.2s;
}
.pg-btn-continue:hover { background: #1650e0; }
.pg-btn-secondary {
    display: inline-flex; align-items: center;
    padding: 12px 20px; border: 2px solid var(--color-border);
    color: var(--color-text); border-radius: 8px;
    font-family: 'LINE Seed JP', sans-serif; font-size: 14px; font-weight: 700;
    text-decoration: none; transition: border-color 0.2s, color 0.2s;
}
.pg-btn-secondary:hover { border-color: var(--color-primary); color: var(--color-primary); }

/* Right column */
.pg-right-col { display: flex; flex-direction: column; gap: 16px; }
.pg-record-card,
.pg-completed-aircraft-card {
    background: #fff; border: 1px solid var(--color-border); border-radius: 14px; padding: 24px;
}
.pg-section-label {
    font-family: 'LINE Seed JP', sans-serif; font-size: 11px; font-weight: 700;
    letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-muted); margin: 0 0 16px;
}
.pg-record-row {
    display: flex; justify-content: space-between; align-items: center;
    padding: 10px 0; border-bottom: 1px solid var(--color-border);
    font-family: 'LINE Seed JP', sans-serif; font-size: 14px;
}
.pg-record-row:last-of-type { border-bottom: none; }
.pg-record-key { color: var(--color-muted); }
.pg-record-val { font-weight: 700; color: var(--color-text); }
.pg-rank-chip {
    font-family: 'LINE Seed JP', sans-serif; font-size: 12px; font-weight: 700;
    padding: 3px 10px; border-radius: 20px;
    color: var(--color-muted); background: rgba(82,101,122,0.1);
}
.pg-rank-chip--earned.rank--bronze   { background: rgba(180,83,9,0.1);    color: #92400e; }
.pg-rank-chip--earned.rank--silver   { background: rgba(100,116,139,0.12); color: #475569; }
.pg-rank-chip--earned.rank--gold     { background: rgba(217,119,6,0.1);   color: #b45309; }
.pg-rank-chip--earned.rank--platinum { background: rgba(124,58,237,0.08); color: #5b21b6; }
.pg-record-hint {
    font-family: 'LINE Seed JP', sans-serif; font-size: 13px; color: var(--color-muted);
    background: rgba(31,92,255,0.04); border: 1px solid var(--color-border);
    border-radius: 8px; padding: 10px 14px; margin-top: 14px;
}
.pg-no-data { font-family: 'LINE Seed JP', sans-serif; font-size: 13px; color: var(--color-muted); margin: 0 0 12px; }
.pg-done-aircraft-row { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.pg-done-aircraft-icon { width: 28px; height: 28px; object-fit: contain; }
.pg-done-aircraft-name { font-family: 'LINE Seed JP', sans-serif; font-size: 14px; font-weight: 700; color: var(--color-text); margin: 0 0 2px; }
.pg-done-aircraft-meta { font-family: 'LINE Seed JP', sans-serif; font-size: 12px; color: var(--color-muted); margin: 0; }
.pg-done-chip {
    margin-left: auto;
    font-family: 'LINE Seed JP', sans-serif; font-size: 12px; font-weight: 700;
    color: #16a34a; background: rgba(22,163,74,0.08); border: 1px solid rgba(22,163,74,0.2);
    padding: 3px 10px; border-radius: 20px;
}
.pg-coming-soon-row {
    font-family: 'LINE Seed JP', sans-serif; font-size: 13px; color: var(--color-muted);
    padding-top: 12px; border-top: 1px solid var(--color-border);
}

/* Responsive */
@media (max-width: 1024px) {
    .pg-row--top,
    .pg-row--mid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
    .pg-wrap { padding: 32px 16px 60px; }
    .pg-h1   { font-size: 28px; }
    .pg-stats-grid { grid-template-columns: 1fr 1fr; }
    .pg-aircraft-btns { flex-direction: column; }
    .pg-btn-continue,
    .pg-btn-secondary { justify-content: center; }
}

/* ============================================================
   PROFILE PAGE
   ============================================================ */

.profile-page {
    padding: 40px 0 80px;
}

.profile-container {
    max-width: 840px;
    margin: 0 auto;
}

.page-kicker {
    font-family: var(--font-body);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.14em;
    color: var(--color-muted);
    text-transform: uppercase;
    margin: 0 0 8px;
}

.profile-title {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 400;
    color: var(--color-text);
    margin: 0 0 6px;
}

.profile-subtitle {
    font-family: var(--font-body);
    font-size: 14px;
    color: var(--color-muted);
    margin: 0 0 28px;
}

/* ---- Hero card ---- */
.profile-hero-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 20px;
    box-shadow: 0 2px 16px rgba(21, 37, 54, 0.05);
}

.profile-banner {
    height: 90px;
    background: linear-gradient(135deg, #152536 0%, #1a3558 100%);
}

.profile-avatar-center {
    display: flex;
    justify-content: center;
    margin-top: -44px;
    margin-bottom: 14px;
}

.profile-avatar-wrap {
    position: relative;
    display: inline-flex;
}

.profile-avatar {
    width: 84px;
    height: 84px;
    border-radius: 50%;
    background: #ffffff;
    border: 3px solid #ffffff;
    box-shadow: 0 4px 20px rgba(21, 37, 54, 0.14);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-body);
    font-weight: 800;
    font-size: 26px;
    color: var(--color-text);
}

.profile-status-dot {
    width: 14px;
    height: 14px;
    background: #22c55e;
    border-radius: 50%;
    border: 2.5px solid #ffffff;
    position: absolute;
    bottom: 4px;
    right: 4px;
}

.profile-hero-body {
    text-align: center;
    padding: 0 32px 28px;
}

.profile-name {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 400;
    color: var(--color-text);
    margin: 0 0 8px;
}

.profile-rank-chip {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 12px;
    font-weight: 700;
    background: #e8f0ff;
    color: var(--color-primary);
    padding: 4px 14px;
    border-radius: 999px;
    margin-bottom: 8px;
}

.profile-email {
    font-family: var(--font-body);
    font-size: 13px;
    color: var(--color-muted);
    margin: 0 0 20px;
}

.profile-meta-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    margin: 0 -32px;
    text-align: left;
}

.profile-meta-item {
    padding: 16px 24px;
    border-right: 1px solid var(--color-border);
}

.profile-meta-item:last-child {
    border-right: none;
}

.meta-label {
    display: block;
    font-family: var(--font-body);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin-bottom: 5px;
}

.meta-val {
    display: block;
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: 700;
    color: var(--color-text);
}

.profile-logout-btn {
    margin-top: 20px;
    width: 100%;
    padding: 14px;
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 700;
    color: var(--color-text);
    cursor: pointer;
    transition: background 0.15s;
}

.profile-logout-btn:hover {
    background: #f5f7fa;
}

/* ---- Section cards ---- */
.profile-section-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 28px 32px;
    margin-bottom: 20px;
    box-shadow: 0 2px 16px rgba(21, 37, 54, 0.04);
}

.profile-card-label {
    font-family: var(--font-body);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin: 0 0 20px;
}

/* ---- Account info rows ---- */
.account-info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 13px 0;
    border-bottom: 1px solid var(--color-border);
}

.account-info-row:last-child {
    border-bottom: none;
}

.account-info-key {
    font-family: var(--font-body);
    font-size: 14px;
    color: var(--color-muted);
}

.account-info-val {
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 700;
    color: var(--color-text);
}

.status-pill {
    font-family: var(--font-body);
    font-size: 12px;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 999px;
}

.status-pill--notstarted { background: #f0f0f0;  color: #777; }
.status-pill--inprogress { background: #e8f0ff;  color: var(--color-primary); }
.status-pill--completed  { background: #e6f9ee;  color: #1a7a3c; }

/* ---- Aircraft progress ---- */
.aircraft-progress-row {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 16px;
}

.aircraft-icon-tile {
    width: 42px;
    height: 42px;
    background: var(--color-primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.aircraft-progress-info {
    flex: 1;
}

.aircraft-progress-title {
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 0 3px;
}

.aircraft-progress-sub {
    font-family: var(--font-body);
    font-size: 13px;
    color: var(--color-muted);
    margin: 0;
}

.profile-progress-bar {
    width: 100%;
    height: 8px;
    background: var(--color-border);
    border-radius: 999px;
    overflow: hidden;
    margin-bottom: 10px;
}

.profile-progress-fill {
    height: 100%;
    background: var(--color-primary);
    border-radius: 999px;
    transition: width 0.5s ease;
}

.progress-text {
    font-family: var(--font-body);
    font-size: 13px;
    color: var(--color-muted);
    margin: 0;
}

/* ---- Badge grid ---- */
.badge-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 16px;
}

.badge-card {
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 20px 12px;
    text-align: center;
}

.badge-card.locked {
    background: #fafafa;
}

.badge-card.unlocked {
    background: #fffbf0;
    border-color: #e8c94a;
}

.badge-icon {
    display: block;
    font-size: 28px;
    margin-bottom: 8px;
    line-height: 1;
}

.badge-card.locked .badge-icon {
    filter: grayscale(1);
    opacity: 0.5;
}

.badge-name {
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 0 4px;
}

.badge-card.locked .badge-name {
    color: var(--color-muted);
}

.badge-desc {
    font-family: var(--font-body);
    font-size: 11px;
    color: var(--color-muted);
    margin: 0;
}

.badge-hint {
    font-family: var(--font-body);
    font-size: 13px;
    color: var(--color-muted);
    margin: 0;
}

/* ---- Rank rows ---- */
.rank-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 13px 16px;
    border-radius: 8px;
    margin-bottom: 8px;
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 700;
}

.rank-row--active {
    background: #e8f0ff;
    color: var(--color-primary);
}

.rank-row--locked {
    background: transparent;
    color: var(--color-muted);
}

.rank-status {
    font-size: 12px;
    font-weight: 700;
}

.rank-status--active {
    background: var(--color-primary);
    color: #ffffff;
    padding: 3px 10px;
    border-radius: 999px;
}

.rank-status--locked {
    color: var(--color-muted);
    font-weight: 400;
}

.rank-hint {
    font-family: var(--font-body);
    font-size: 13px;
    color: var(--color-muted);
    margin: 4px 0 0;
}

/* ---- Completion record ---- */
.completion-record {
    display: flex;
    align-items: center;
    gap: 24px;
}

.completion-count {
    font-family: var(--font-display);
    font-size: 58px;
    font-weight: 400;
    color: var(--color-text);
    line-height: 1;
    flex-shrink: 0;
}

.completion-title {
    font-family: var(--font-body);
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 0 4px;
}

.completion-sub {
    font-family: var(--font-body);
    font-size: 13px;
    color: var(--color-muted);
    margin: 0;
}

/* ---- Profile responsive ---- */
@media (max-width: 1024px) {
    .profile-container {
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .profile-meta-grid {
        grid-template-columns: 1fr;
    }
    .profile-meta-item {
        border-right: none;
        border-bottom: 1px solid var(--color-border);
    }
    .profile-meta-item:last-child {
        border-bottom: none;
    }
    .badge-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .profile-section-card {
        padding: 22px 20px;
    }
    .profile-hero-body {
        padding: 0 20px 24px;
    }
    .profile-meta-grid {
        margin: 0 -20px;
    }
}

@media (max-width: 480px) {
    .badge-grid {
        grid-template-columns: 1fr 1fr;
    }
    .completion-count {
        font-size: 42px;
    }
    .profile-title {
        font-size: 26px;
    }
}

/* ============================================================
   RESPONSIVE — HOME PAGE
   ============================================================ */
@media (max-width: 768px) {
    /* Hero */
    .hero-heading    { font-size: 30px; }
    .hero-subheading { font-size: 18px; margin-bottom: 28px; }
    .hero-buttons    { flex-direction: column; align-items: center; gap: 12px; }
    .btn-primary, .btn-secondary { width: 100%; max-width: 340px; }

    /* About section: single column */
    .about-section   { grid-template-columns: 1fr; gap: 32px; margin-top: 48px; }
    .about-heading   { font-size: 32px; }
    .section-heading { font-size: 30px; }

    /* Flight path: 3 cols at tablet */
    .flight-path-cards { grid-template-columns: repeat(3, 1fr); }

    /* Progress section */
    .progress-section { padding: 36px 24px; }
    .progress-content-with-reel {
        grid-template-columns: 1fr;
        gap: 28px;
    }
    .demo-reel {
        max-width: 360px;
        margin: 0 auto;
    }

    /* Footer */
    .footer-bottom { flex-direction: column; align-items: flex-start; gap: 16px; }
    .footer-nav    { flex-wrap: wrap; gap: 16px; }

    /* Feature cards */
    .feature-card { padding: 20px 16px; gap: 12px; }
}
@media (max-width: 480px) {
    .hero-heading      { font-size: 24px; }
    .hero-subheading   { font-size: 16px; }
    .about-heading     { font-size: 26px; }
    .section-heading   { font-size: 24px; }
    .flight-path-cards { grid-template-columns: repeat(2, 1fr); }
    .feature-card      { flex-direction: column; }
    .card-icon         { align-self: flex-end; }
}

/* ============================================================
   RESPONSIVE — LESSONS PAGE
   ============================================================ */
@media (max-width: 768px) {
    .lessons-heading      { font-size: 32px; }
    .aircraft-grid        { grid-template-columns: 1fr; }
    .lesson-overview-card { grid-template-columns: 1fr; gap: 24px; }
    .lesson-main-heading  { font-size: 32px; }
    .resources-grid       { columns: 1; }
    .lesson-step-content  { grid-template-columns: 1fr; }
    .lesson-step-title    { font-size: 24px; }

    /* Lesson tabs: horizontal scroll instead of wrapping */
    .lesson-step-tabs {
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding-bottom: 4px;
        scrollbar-width: none;
    }
    .lesson-step-tabs::-webkit-scrollbar { display: none; }
    .lesson-tab { flex-shrink: 0; }

    /* Auth gate card */
    .lessons-gate-card { padding: 36px 24px; }
    .lessons-gate-btns { flex-wrap: wrap; }
}

/* ============================================================
   RESPONSIVE — LOGIN / SIGNUP
   ============================================================ */
@media (max-width: 480px) {
    .auth-card    { padding: 28px 20px; }
    .auth-heading { font-size: 26px; }
    .btn-auth     { width: 100%; }
}

/* ============================================================
   LESSONS PAGE — SEARCH COMPONENT
   ============================================================ */
.search-section {
    margin: -16px 0 32px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 14px;
    padding: 20px 22px;
    box-shadow: 0 2px 10px rgba(21, 37, 54, 0.04);
}
.search-label {
    display: block;
    font-family: 'LINE Seed JP', sans-serif;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin: 0 0 10px;
}
.search-bar-row {
    display: flex;
    gap: 10px;
    align-items: stretch;
}
.search-input {
    flex: 1;
    padding: 12px 14px;
    border: 1.5px solid var(--color-border);
    border-radius: 8px;
    font-family: 'LINE Seed JP', sans-serif;
    font-size: 15px;
    color: var(--color-text);
    background: #fff;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.search-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(31, 92, 255, 0.12);
}
.search-btn {
    padding: 12px 22px;
    background: var(--color-primary);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-family: 'LINE Seed JP', sans-serif;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.2s, transform 0.15s;
}
.search-btn:hover {
    background: #1650e0;
}
.search-btn:active { transform: translateY(1px); }

.search-results {
    margin-top: 16px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.search-results.hidden { display: none; }
.search-group-label {
    font-family: 'LINE Seed JP', sans-serif;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin: 4px 0 -4px;
}
.search-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.search-result-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 16px;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    transition: border-color 0.15s, background 0.15s;
}
.search-result-card:hover {
    border-color: var(--color-primary);
    background: rgba(31, 92, 255, 0.03);
}
.search-result-text {
    flex: 1;
    min-width: 0;
}
.search-result-title {
    margin: 0 0 2px;
    font-family: 'LINE Seed JP', sans-serif;
    font-size: 15px;
    font-weight: 700;
    color: var(--color-text);
}
.search-result-sub {
    margin: 0;
    font-family: 'LINE Seed JP', sans-serif;
    font-size: 13px;
    color: var(--color-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.search-result-action {
    flex-shrink: 0;
    padding: 8px 14px;
    background: var(--color-primary);
    color: #fff;
    border-radius: 6px;
    font-family: 'LINE Seed JP', sans-serif;
    font-size: 13px;
    font-weight: 700;
    text-decoration: none;
    transition: background 0.15s;
}
.search-result-action:hover { background: #1650e0; }
.search-result-badge {
    flex-shrink: 0;
    padding: 6px 12px;
    background: var(--color-border);
    color: var(--color-muted);
    border-radius: 6px;
    font-family: 'LINE Seed JP', sans-serif;
    font-size: 12px;
    font-weight: 700;
}
.search-empty {
    margin: 0;
    padding: 12px 4px;
    font-family: 'LINE Seed JP', sans-serif;
    font-size: 14px;
    color: var(--color-muted);
    text-align: center;
}

@media (max-width: 480px) {
    .search-section { padding: 16px 16px; }
    .search-bar-row { flex-direction: column; }
    .search-btn     { width: 100%; }
    .search-result-card { flex-direction: column; align-items: flex-start; }
    .search-result-action,
    .search-result-badge { width: 100%; text-align: center; }
}

/* ============================================================
   PROFILE PAGE — EDIT PROFILE FORM
   ============================================================ */
.edit-profile-block { margin-top: 18px; }

.btn-edit-profile {
    padding: 10px 20px;
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
    border-radius: 8px;
    font-family: 'LINE Seed JP', sans-serif;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
}
.btn-edit-profile:hover {
    background: var(--color-primary);
    color: #fff;
}

.edit-profile-form {
    margin-top: 14px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.edit-profile-form.hidden { display: none; }

.edit-form-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.edit-form-label {
    font-family: 'LINE Seed JP', sans-serif;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-muted);
}
.edit-form-input {
    padding: 12px 14px;
    border: 1.5px solid var(--color-border);
    border-radius: 8px;
    font-family: 'LINE Seed JP', sans-serif;
    font-size: 15px;
    color: var(--color-text);
    background: #fff;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
    width: 100%;
}
.edit-form-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(31, 92, 255, 0.12);
}

.edit-form-msg {
    padding: 10px 14px;
    border-radius: 8px;
    font-family: 'LINE Seed JP', sans-serif;
    font-size: 13px;
    font-weight: 700;
}
.edit-form-msg.hidden { display: none; }
.edit-form-msg--success {
    background: #e6f8ec;
    color: #1a7a3c;
    border: 1px solid #a8e6bf;
}
.edit-form-msg--error {
    background: #fdecec;
    color: #b8313a;
    border: 1px solid #f3b7bb;
}

.edit-form-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}
.btn-save-profile {
    padding: 11px 22px;
    background: var(--color-primary);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-family: 'LINE Seed JP', sans-serif;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.15s;
}
.btn-save-profile:hover { background: #1650e0; }
.btn-save-profile:disabled {
    background: var(--color-border);
    color: var(--color-muted);
    cursor: not-allowed;
}
.btn-cancel-profile {
    padding: 11px 22px;
    background: transparent;
    color: var(--color-muted);
    border: 1.5px solid var(--color-border);
    border-radius: 8px;
    font-family: 'LINE Seed JP', sans-serif;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: border-color 0.15s, color 0.15s;
}
.btn-cancel-profile:hover {
    border-color: var(--color-muted);
    color: var(--color-text);
}

/* ============================================================
   PROFILE PAGE — DANGER ZONE
   ============================================================ */
.danger-zone {
    border: 1px solid #f3b7bb;
    background: #fffafa;
}
.danger-zone-label {
    color: #b8313a !important;
}
.danger-zone-desc {
    margin: 0 0 14px;
    font-family: 'LINE Seed JP', sans-serif;
    font-size: 14px;
    color: var(--color-muted);
}
.btn-delete-account {
    padding: 11px 22px;
    background: transparent;
    color: #b8313a;
    border: 2px solid #d44a52;
    border-radius: 8px;
    font-family: 'LINE Seed JP', sans-serif;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
}
.btn-delete-account:hover {
    background: #d44a52;
    color: #fff;
}

/* ============================================================
   MY PROGRESS — RESET BUTTON
   ============================================================ */
.pg-btn-reset {
    display: inline-flex;
    align-items: center;
    padding: 12px 20px;
    border: 2px solid var(--color-border);
    color: var(--color-text);
    background: transparent;
    border-radius: 8px;
    font-family: 'LINE Seed JP', sans-serif;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.pg-btn-reset:hover {
    border-color: #d44a52;
    color: #b8313a;
    background: #fdecec;
}
.pg-btn-reset:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}
.pg-reset-msg {
    margin: 10px 0 0;
    padding: 10px 14px;
    border-radius: 8px;
    font-family: 'LINE Seed JP', sans-serif;
    font-size: 13px;
    font-weight: 700;
}
.pg-reset-msg.hidden { display: none; }
.pg-reset-msg--success {
    background: #e6f8ec;
    color: #1a7a3c;
    border: 1px solid #a8e6bf;
}
.pg-reset-msg--error {
    background: #fdecec;
    color: #b8313a;
    border: 1px solid #f3b7bb;
}

@media (max-width: 768px) {
    .pg-btn-reset { justify-content: center; width: 100%; }
}

/* ============================================================
   LESSON STEP — EXTERNAL TUTORIAL REFERENCE VIDEO
   ============================================================ */
.external-ref-note {
    background: rgba(31, 92, 255, 0.04);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 14px 16px;
    margin-bottom: 14px;
}
.external-ref-badge {
    display: inline-block;
    font-family: "LINE Seed JP", sans-serif;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-primary);
    background: rgba(31, 92, 255, 0.1);
    padding: 4px 10px;
    border-radius: 20px;
    margin: 0 0 8px;
}
.external-ref-text {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 13px;
    color: var(--color-muted);
    line-height: 1.5;
    margin: 0 0 4px;
}
.external-ref-source {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 12px;
    font-weight: 700;
    color: var(--color-text);
    margin: 0;
}

/* Responsive 16:9 lesson video */
.lesson-video-embed {
    width: 100%;
    max-width: 100%;
    aspect-ratio: 16 / 9;
    border: 2px solid var(--color-primary);
    border-radius: 12px;
    overflow: hidden;
    background: #000000;
}
.lesson-video-embed iframe,
.lesson-video-embed video {
    width: 100%;
    height: 100%;
    border: 0;
    display: block;
}

.lesson-video-embed video {
    object-fit: contain;
    background: #000000;
}

.lesson-video-disclaimer {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 12px;
    color: var(--color-muted);
    line-height: 1.5;
    margin: 10px 0 0;
}

.lesson-info-card {
    margin-top: 18px;
}

.lesson-info-label {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 13px;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin: 0 0 10px;
}

.lesson-info-image {
    width: 100%;
    max-width: 100%;
    height: auto;
    display: block;
    border: 2px solid var(--color-border);
    border-radius: 12px;
    background: var(--color-bg);
}

/* Secondary "watch on YouTube" link (e.g. landing reference) */
.lesson-video-secondary-link {
    display: inline-block;
    margin-top: 12px;
    font-family: "LINE Seed JP", sans-serif;
    font-size: 14px;
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
    transition: opacity 0.2s ease;
}
.lesson-video-secondary-link:hover {
    opacity: 0.7;
    text-decoration: underline;
}

/* No-video fallback */
.lesson-video-soon {
    width: 100%;
    aspect-ratio: 16 / 9;
    border: 2px dashed var(--color-border);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 20px;
    text-align: center;
    background: var(--color-bg);
}
.lesson-video-soon-title {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 15px;
    font-weight: 700;
    color: var(--color-text);
    margin: 0;
}
.lesson-video-soon-sub {
    font-family: "LINE Seed JP", sans-serif;
    font-size: 13px;
    color: var(--color-muted);
    margin: 0;
}