/* ════════════════════════════════════════
   ANDRÉS DAVID ARCILA — Lessons Platform
   Guitar Lesson Subscription System
   ════════════════════════════════════════ */

/* ── LESSONS HUB PAGE ── */
.lessons-hero {
  background: linear-gradient(160deg, var(--walnut) 0%, var(--walnut2) 50%, var(--green) 100%);
  padding: 8rem 0 5rem; text-align: center; position: relative; overflow: hidden;
}
.lessons-hero::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 50% at 50% 80%, rgba(196,137,42,0.08), transparent 60%);
}
.lessons-hero .container { position: relative; z-index: 1; }
.lessons-hero h1 { color: var(--ivory); font-size: clamp(2.2rem,5vw,3.8rem); margin-bottom: 1rem; }
.lessons-hero p { color: rgba(245,237,216,0.65); font-size: 1.05rem; max-width: 560px; margin: 0 auto 2rem; font-family: var(--fp); font-style: italic; }

/* ── PLANS ── */
.plans-section { background: var(--ivory); padding: 5rem 0; }
.plans-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; max-width: 820px; margin: 0 auto; }
.plan-card {
  background: var(--white); border-radius: 4px;
  border: 2px solid var(--border); padding: 2.5rem;
  position: relative; transition: 0.3s var(--ease);
}
.plan-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.plan-card.featured {
  background: linear-gradient(160deg, var(--walnut), var(--green));
  border-color: var(--gold); transform: scale(1.03);
}
.plan-card.featured:hover { transform: scale(1.03) translateY(-4px); }
.plan-popular {
  position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  background: var(--gold); color: var(--walnut);
  font-size: 0.68rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em;
  padding: 0.25rem 1rem; border-radius: 2px;
}
.plan-name {
  font-family: var(--fh); font-size: 0.75rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.14em; color: var(--gold); margin-bottom: 0.4rem;
}
.plan-card.featured .plan-name { color: var(--gold2); }
.plan-title { font-family: var(--fh); font-size: 1.8rem; font-weight: 700; margin-bottom: 0.5rem; }
.plan-card.featured .plan-title { color: var(--ivory); }
.plan-price-row { display: flex; align-items: baseline; gap: 0.2rem; margin: 1rem 0; }
.plan-cur  { font-size: 1.3rem; font-weight: 600; color: var(--walnut); }
.plan-amt  { font-family: var(--fh); font-size: 3rem; font-weight: 700; color: var(--walnut); line-height: 1; }
.plan-per  { font-size: 0.85rem; color: var(--muted); margin-left: 0.2rem; }
.plan-card.featured .plan-cur,
.plan-card.featured .plan-amt { color: var(--ivory); }
.plan-card.featured .plan-per { color: rgba(245,237,216,0.55); }
.plan-desc { font-size: 0.9rem; color: var(--muted); margin-bottom: 1.5rem; }
.plan-card.featured .plan-desc { color: rgba(245,237,216,0.6); }
.plan-features { list-style: none; margin-bottom: 2rem; }
.plan-features li {
  display: flex; align-items: flex-start; gap: 0.6rem;
  padding: 0.5rem 0; font-size: 0.88rem;
  color: var(--gray-800); border-bottom: 1px solid var(--border);
}
.plan-card.featured .plan-features li { color: rgba(245,237,216,0.82); border-color: rgba(245,237,216,0.1); }
.plan-features .chk { color: var(--gold); font-weight: 700; flex-shrink: 0; }
.plan-features .no  { color: var(--muted); flex-shrink: 0; }
.plan-card.featured .plan-features .chk { color: var(--gold2); }
.plan-cta { display: block; text-align: center; }
.plan-guarantee {
  text-align: center; margin-top: 1.5rem; font-size: 0.78rem;
  color: var(--muted); font-family: var(--fp); font-style: italic;
}

/* ── LESSON LIBRARY ── */
.library-section { background: var(--ivory2); padding: 5rem 0; }
.library-filters {
  display: flex; gap: 0.5rem; flex-wrap: wrap;
  margin-bottom: 3rem; justify-content: center;
}
.filter-btn {
  padding: 0.5rem 1.25rem; border-radius: 2px;
  background: transparent; border: 1px solid var(--border);
  font-family: var(--fb); font-size: 0.78rem; font-weight: 500;
  text-transform: uppercase; letter-spacing: 0.12em;
  color: var(--muted); cursor: pointer; transition: 0.2s var(--ease);
}
.filter-btn:hover, .filter-btn.active {
  background: var(--gold); color: var(--walnut); border-color: var(--gold);
}
.lessons-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.5rem; }
.lesson-card {
  background: var(--white); border-radius: 2px; overflow: hidden;
  border: 1px solid var(--border); transition: 0.3s var(--ease); position: relative;
}
.lesson-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.lesson-thumb {
  aspect-ratio: 16/9; background: var(--walnut2);
  position: relative; overflow: hidden; cursor: pointer;
}
.lesson-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s; }
.lesson-card:hover .lesson-thumb img { transform: scale(1.04); }
.lesson-thumb-placeholder {
  width: 100%; height: 100%;
  background: linear-gradient(135deg, var(--walnut2), var(--walnut3));
  display: flex; align-items: center; justify-content: center;
  font-size: 2.5rem; opacity: 0.4;
}
.lesson-play-btn {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%);
  width: 52px; height: 52px; border-radius: 50%;
  background: rgba(196,137,42,0.9); display: flex; align-items: center; justify-content: center;
  font-size: 1rem; color: var(--walnut); padding-left: 3px;
  transition: 0.2s; backdrop-filter: blur(4px);
}
.lesson-card:hover .lesson-play-btn { transform: translate(-50%,-50%) scale(1.1); background: var(--gold); }
.lesson-lock {
  position: absolute; top: 0.75rem; right: 0.75rem;
  background: rgba(44,26,14,0.85); color: var(--ivory);
  font-size: 0.65rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em;
  padding: 0.2rem 0.6rem; border-radius: 2px; backdrop-filter: blur(4px);
  display: flex; align-items: center; gap: 0.3rem;
}
.lesson-free-badge {
  position: absolute; top: 0.75rem; right: 0.75rem;
  background: var(--gold); color: var(--walnut);
  font-size: 0.65rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em;
  padding: 0.2rem 0.6rem; border-radius: 2px;
}
.lesson-level {
  position: absolute; bottom: 0.75rem; left: 0.75rem;
  font-size: 0.62rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em;
  padding: 0.2rem 0.6rem; border-radius: 2px; backdrop-filter: blur(4px);
}
.level-beginner    { background: rgba(44,74,46,0.85); color: #90EE90; }
.level-intermediate{ background: rgba(196,137,42,0.85); color: var(--ivory); }
.level-advanced    { background: rgba(139,69,19,0.85); color: var(--ivory); }
.lesson-body { padding: 1.25rem; }
.lesson-style { font-size: 0.65rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.14em; color: var(--gold); margin-bottom: 0.4rem; }
.lesson-title { font-family: var(--fh); font-size: 1.15rem; font-weight: 600; margin-bottom: 0.4rem; font-style: italic; line-height: 1.3; }
.lesson-title a:hover { color: var(--gold); }
.lesson-meta { display: flex; align-items: center; justify-content: space-between; font-size: 0.75rem; color: var(--muted); margin-top: 0.6rem; }
.lesson-duration { display: flex; align-items: center; gap: 0.3rem; }
.lesson-plan-req {
  font-size: 0.65rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--terra); border: 1px solid rgba(139,69,19,0.2); padding: 0.15rem 0.5rem; border-radius: 2px;
}

/* ── SINGLE LESSON PAGE ── */
.lesson-page { background: var(--walnut); min-height: 100vh; }
.lesson-header {
  background: rgba(0,0,0,0.3); padding: 6rem 0 2rem;
  border-bottom: 1px solid rgba(245,237,216,0.08);
}
.lesson-header h1 { color: var(--ivory); font-size: clamp(1.6rem,3.5vw,2.5rem); margin-bottom: 0.75rem; }
.lesson-breadcrumb {
  font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.14em;
  color: rgba(245,237,216,0.4); margin-bottom: 1rem;
  display: flex; align-items: center; gap: 0.5rem;
}
.lesson-breadcrumb a { color: var(--gold); }
.lesson-breadcrumb span { opacity: 0.4; }
.lesson-content-grid {
  display: grid; grid-template-columns: 1fr 340px; gap: 2rem;
  padding: 2rem 0 5rem; align-items: start;
}
/* Video player */
.video-player-wrap {
  background: #000; border-radius: 2px; overflow: hidden;
  aspect-ratio: 16/9; position: relative;
}
.video-player-wrap iframe,
.video-player-wrap video { width: 100%; height: 100%; border: none; display: block; }
.video-locked-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(160deg, rgba(44,26,14,0.95), rgba(44,74,46,0.95));
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: 2rem;
}
.locked-icon { font-size: 3rem; margin-bottom: 1rem; }
.video-locked-overlay h3 { font-family: var(--fh); font-size: 1.5rem; color: var(--ivory); margin-bottom: 0.75rem; font-style: italic; }
.video-locked-overlay p { color: rgba(245,237,216,0.6); font-size: 0.9rem; margin-bottom: 1.5rem; }
/* Lesson notes */
.lesson-notes { margin-top: 1.5rem; background: var(--walnut2); padding: 1.75rem; border-radius: 2px; }
.lesson-notes h3 { font-family: var(--fh); color: var(--ivory); font-size: 1.2rem; margin-bottom: 1rem; font-style: italic; }
.lesson-notes p, .lesson-notes li { color: rgba(245,237,216,0.65); font-size: 0.9rem; line-height: 1.7; }
.lesson-notes ul { padding-left: 1.2rem; margin: 0.5rem 0; }
.lesson-notes li { margin-bottom: 0.3rem; }
/* Sheet music / attachments */
.lesson-attachments { margin-top: 1.5rem; }
.attachment-item {
  display: flex; align-items: center; gap: 0.75rem;
  background: var(--walnut2); padding: 0.85rem 1rem; margin-bottom: 2px;
  border-radius: 2px; transition: 0.2s;
}
.attachment-item:hover { background: var(--walnut3); }
.att-icon { font-size: 1.1rem; flex-shrink: 0; }
.att-name { flex: 1; font-size: 0.88rem; color: var(--ivory); }
.att-download { font-size: 0.72rem; color: var(--gold); font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; }
/* Sidebar */
.lesson-sidebar {}
.lesson-playlist {
  background: var(--walnut2); border-radius: 2px; overflow: hidden;
  margin-bottom: 1.5rem;
}
.playlist-header { padding: 1rem 1.25rem; border-bottom: 1px solid rgba(245,237,216,0.08); }
.playlist-header h4 { font-family: var(--fh); color: var(--ivory); font-size: 1rem; font-style: italic; }
.playlist-header p { font-size: 0.72rem; color: rgba(245,237,216,0.4); margin: 0.2rem 0 0; }
.playlist-item {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 0.85rem 1.25rem; cursor: pointer; transition: 0.2s;
  border-bottom: 1px solid rgba(245,237,216,0.05); text-decoration: none;
}
.playlist-item:hover { background: rgba(245,237,216,0.04); }
.playlist-item.active { background: rgba(196,137,42,0.1); border-left: 2px solid var(--gold); }
.playlist-item.locked { opacity: 0.5; cursor: not-allowed; }
.pi-num { font-family: var(--fb); font-size: 0.72rem; color: rgba(245,237,216,0.35); width: 20px; flex-shrink: 0; }
.pi-info { flex: 1; }
.pi-title { font-size: 0.85rem; color: var(--ivory); font-family: var(--fh); font-style: italic; }
.pi-meta  { font-size: 0.68rem; color: rgba(245,237,216,0.4); margin-top: 0.1rem; }
.pi-dur   { font-size: 0.72rem; color: rgba(245,237,216,0.35); }
.pi-lock  { font-size: 0.75rem; color: rgba(245,237,216,0.25); }
/* Progress */
.lesson-progress-card {
  background: var(--walnut2); border-radius: 2px; padding: 1.25rem;
}
.lesson-progress-card h4 { font-family: var(--fh); color: var(--ivory); font-style: italic; margin-bottom: 1rem; }
.progress-bar-wrap { background: rgba(245,237,216,0.08); border-radius: 2px; height: 6px; margin-bottom: 0.5rem; overflow: hidden; }
.progress-bar-fill { height: 100%; background: linear-gradient(90deg, var(--green2), var(--gold)); border-radius: 2px; transition: width 1s var(--ease); }
.progress-label { font-size: 0.75rem; color: rgba(245,237,216,0.45); display: flex; justify-content: space-between; }

/* ── MEMBER DASHBOARD ── */
.dashboard-page { background: var(--ivory); }
.dashboard-hero { background: linear-gradient(160deg, var(--walnut), var(--green)); padding: 6rem 0 3rem; }
.dashboard-hero h1 { color: var(--ivory); }
.dashboard-hero p { color: rgba(245,237,216,0.6); margin-top: 0.5rem; }
.dashboard-grid { display: grid; grid-template-columns: 240px 1fr; gap: 2.5rem; padding: 3rem 0 5rem; align-items: start; }
/* Dashboard sidebar */
.dash-nav { background: var(--white); border: 1px solid var(--border); border-radius: 2px; overflow: hidden; }
.dash-nav a {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 0.85rem 1.25rem; font-size: 0.85rem; font-weight: 500;
  color: var(--walnut); border-bottom: 1px solid var(--border);
  transition: 0.2s; text-decoration: none;
}
.dash-nav a:last-child { border-bottom: none; }
.dash-nav a:hover, .dash-nav a.active { background: var(--ivory2); color: var(--gold); }
.dash-nav .dash-icon { font-size: 1rem; width: 20px; text-align: center; flex-shrink: 0; }
/* Dashboard main */
.dash-stats { display: grid; grid-template-columns: repeat(3,1fr); gap: 1rem; margin-bottom: 2rem; }
.dash-stat { background: var(--white); border: 1px solid var(--border); border-radius: 2px; padding: 1.25rem; text-align: center; }
.dash-stat .ds-num { font-family: var(--fh); font-size: 2.2rem; font-weight: 700; color: var(--gold); line-height: 1; }
.dash-stat .ds-label { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--muted); margin-top: 0.35rem; }
.dash-section-title { font-family: var(--fh); font-size: 1.3rem; font-style: italic; margin-bottom: 1rem; }
.dash-continue { background: var(--white); border: 1px solid var(--border); border-radius: 2px; overflow: hidden; margin-bottom: 2rem; }
.dash-continue-inner { display: flex; align-items: center; gap: 1.25rem; padding: 1.25rem; }
.dash-continue-thumb { width: 100px; aspect-ratio: 16/9; background: var(--walnut2); border-radius: 2px; overflow: hidden; flex-shrink: 0; }
.dash-continue-thumb img { width: 100%; height: 100%; object-fit: cover; }
.dash-continue-info h4 { font-family: var(--fh); font-style: italic; margin-bottom: 0.3rem; }
.dash-continue-info p { font-size: 0.82rem; color: var(--muted); margin: 0; }
.dash-continue-btn { margin-left: auto; flex-shrink: 0; }
/* Subscription card */
.sub-card { background: var(--white); border: 1px solid var(--border); border-radius: 2px; padding: 1.5rem; margin-bottom: 1.5rem; }
.sub-card h4 { font-family: var(--fh); font-style: italic; font-size: 1.1rem; margin-bottom: 1rem; }
.sub-info-row { display: flex; justify-content: space-between; padding: 0.6rem 0; border-bottom: 1px solid var(--border); font-size: 0.88rem; }
.sub-info-row:last-child { border-bottom: none; }
.sub-info-row .label { color: var(--muted); }
.sub-info-row .val { font-weight: 600; }
.sub-active { color: var(--green2); }
.sub-cancel-btn {
  background: none; border: 1px solid rgba(139,69,19,0.25);
  color: var(--terra); font-family: var(--fb); font-size: 0.78rem;
  padding: 0.5rem 1rem; border-radius: 2px; cursor: pointer;
  transition: 0.2s; margin-top: 1rem;
}
.sub-cancel-btn:hover { background: rgba(139,69,19,0.08); }

/* ── LOGIN / REGISTER ── */
.auth-section { background: var(--ivory); padding: 8rem 0; }
.auth-box { max-width: 480px; margin: 0 auto; background: var(--white); border: 1px solid var(--border); border-radius: 2px; padding: 3rem; }
.auth-box h2 { font-family: var(--fh); font-size: 1.8rem; font-style: italic; text-align: center; margin-bottom: 0.5rem; }
.auth-box .auth-sub { text-align: center; color: var(--muted); font-size: 0.88rem; margin-bottom: 2rem; }
.auth-tabs { display: flex; border-bottom: 2px solid var(--border); margin-bottom: 2rem; }
.auth-tab { flex: 1; padding: 0.75rem; text-align: center; font-size: 0.8rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.12em; cursor: pointer; transition: 0.2s; background: none; border: none; color: var(--muted); font-family: var(--fb); }
.auth-tab.active { color: var(--gold); border-bottom: 2px solid var(--gold); margin-bottom: -2px; }
.auth-form .form-group { margin-bottom: 1.1rem; }
.auth-form label { display: block; font-size: 0.72rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.12em; color: var(--muted); margin-bottom: 0.4rem; }
.auth-form input {
  width: 100%; padding: 0.8rem 1rem;
  background: var(--ivory); border: 1px solid var(--border);
  border-radius: 2px; color: var(--walnut); font-family: var(--fb); font-size: 0.9rem; outline: none; transition: 0.2s;
}
.auth-form input:focus { border-color: var(--gold); background: var(--white); }
.auth-submit { width: 100%; padding: 1rem; background: var(--gold); color: var(--walnut); border: none; border-radius: 2px; font-family: var(--fh); font-size: 1rem; font-style: italic; font-weight: 600; cursor: pointer; transition: 0.2s; margin-top: 0.5rem; }
.auth-submit:hover { background: var(--gold2); }
.auth-link { text-align: center; margin-top: 1.25rem; font-size: 0.82rem; color: var(--muted); }
.auth-link a { color: var(--gold); font-weight: 600; }
.auth-error { background: rgba(139,69,19,0.1); border: 1px solid rgba(139,69,19,0.2); color: var(--terra); padding: 0.75rem 1rem; border-radius: 2px; font-size: 0.85rem; margin-bottom: 1rem; display: none; }
.auth-success { background: rgba(44,74,46,0.1); border: 1px solid rgba(44,74,46,0.2); color: var(--green2); padding: 0.75rem 1rem; border-radius: 2px; font-size: 0.85rem; margin-bottom: 1rem; display: none; }

/* ── CHECKOUT / PAYMENT ── */
.checkout-section { background: var(--ivory); padding: 6rem 0; }
.checkout-grid { display: grid; grid-template-columns: 1fr 420px; gap: 3rem; align-items: start; }
.checkout-form-wrap { background: var(--white); border: 1px solid var(--border); border-radius: 2px; padding: 2rem; }
.checkout-form-wrap h3 { font-family: var(--fh); font-style: italic; font-size: 1.3rem; margin-bottom: 1.5rem; }
.checkout-summary { background: var(--walnut); border-radius: 2px; padding: 2rem; }
.checkout-summary h3 { font-family: var(--fh); font-style: italic; font-size: 1.3rem; color: var(--ivory); margin-bottom: 1.5rem; }
.summary-row { display: flex; justify-content: space-between; padding: 0.6rem 0; border-bottom: 1px solid rgba(245,237,216,0.08); font-size: 0.9rem; }
.summary-row .label { color: rgba(245,237,216,0.6); }
.summary-row .val { color: var(--ivory); font-weight: 600; }
.summary-row.total .label { color: var(--ivory); font-weight: 700; font-size: 1rem; }
.summary-row.total .val { color: var(--gold); font-family: var(--fh); font-size: 1.3rem; }
.checkout-guarantee { margin-top: 1.5rem; text-align: center; }
.checkout-guarantee p { color: rgba(245,237,216,0.45); font-size: 0.78rem; font-family: var(--fp); font-style: italic; }
.payment-secure { display: flex; align-items: center; justify-content: center; gap: 0.5rem; margin-top: 1rem; font-size: 0.72rem; color: rgba(245,237,216,0.35); text-transform: uppercase; letter-spacing: 0.12em; }
/* Card input */
.card-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.card-icons { display: flex; gap: 0.35rem; margin-bottom: 1rem; }
.card-icon { background: var(--ivory2); border: 1px solid var(--border); border-radius: 3px; padding: 0.2rem 0.5rem; font-size: 0.7rem; color: var(--muted); font-weight: 700; }

/* ── LESSONS NAV SECTION (homepage teaser) ── */
.lessons-teaser { background: var(--ivory2); padding: 6rem 0; }
.lessons-teaser-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: center; }
.teaser-text h2 { margin-bottom: 1.25rem; }
.teaser-text p { color: var(--muted); margin-bottom: 1.5rem; font-size: 0.95rem; }
.teaser-stats { display: flex; gap: 2.5rem; margin: 2rem 0; }
.teaser-stat .ts-num { font-family: var(--fh); font-size: 2rem; font-weight: 700; color: var(--gold); line-height: 1; }
.teaser-stat .ts-label { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); margin-top: 0.2rem; }
.teaser-lessons { display: flex; flex-direction: column; gap: 1px; }
.teaser-lesson {
  background: var(--white); padding: 1rem 1.25rem;
  display: flex; align-items: center; gap: 1rem;
  transition: 0.2s; text-decoration: none; color: inherit;
}
.teaser-lesson:hover { background: var(--ivory); transform: translateX(4px); }
.tl-thumb { width: 60px; aspect-ratio: 16/9; background: var(--walnut2); border-radius: 2px; flex-shrink: 0; overflow: hidden; display: flex; align-items: center; justify-content: center; font-size: 1.2rem; opacity: 0.6; }
.tl-info { flex: 1; }
.tl-title { font-family: var(--fh); font-size: 0.95rem; font-style: italic; }
.tl-meta  { font-size: 0.72rem; color: var(--muted); margin-top: 0.15rem; }
.tl-badge { font-size: 0.62rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; padding: 0.2rem 0.5rem; border-radius: 2px; background: rgba(196,137,42,0.12); color: var(--gold); }

/* ── RESPONSIVE ── */
@media(max-width:900px) {
  .plans-grid { grid-template-columns: 1fr; }
  .lessons-grid { grid-template-columns: 1fr 1fr; }
  .lesson-content-grid { grid-template-columns: 1fr; }
  .dashboard-grid { grid-template-columns: 1fr; }
  .dash-stats { grid-template-columns: 1fr 1fr; }
  .checkout-grid { grid-template-columns: 1fr; }
  .lessons-teaser-inner { grid-template-columns: 1fr; }
}
@media(max-width:600px) {
  .lessons-grid { grid-template-columns: 1fr; }
  .plan-card.featured { transform: none; }
  .dash-stats { grid-template-columns: 1fr; }
  .card-row { grid-template-columns: 1fr; }
}

@media(max-width:480px) {
  .lesson-header { padding: 1rem; }
  .lesson-video-wrap { border-radius: 8px; }
  .lesson-meta { flex-direction: column; gap: .5rem; }
  .progress-bar-wrap { display: none; }
  .lesson-nav { flex-direction: column; gap: .75rem; }
  .lesson-nav a { text-align: center; width: 100%; justify-content: center; }
  .join-form { padding: 1.5rem 1rem; }
  .plan-price { font-size: 2rem; }
  .dashboard-stats { grid-template-columns: 1fr; }
}