:root {
  --navy: #0F172A;
  --blue: #2563EB;
  --blue-dark: #1D4ED8;
  --orange: #F97316;
  --green: #22C55E;
  --bg: #F8FAFC;
  --text: #1E293B;
  --muted: #64748B;
  --border: #E2E8F0;
  --white: #ffffff;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  --radius: 14px;
  --font: "Plus Jakarta Sans", "Manrope", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}
a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--blue-dark); }
img { max-width: 100%; display: block; }
h1,h2,h3,h4 { line-height: 1.25; color: var(--navy); margin: 0 0 .6rem; }
p { margin: 0 0 1rem; }
.container { width: min(1120px, calc(100% - 2rem)); margin: 0 auto; }
.muted { color: var(--muted); }
.small { font-size: .9rem; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
  border: 0; border-radius: 10px; padding: .75rem 1.15rem;
  font-weight: 700; font-size: .95rem; cursor: pointer;
  transition: .2s ease; font-family: inherit;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-dark); color: #fff; }
.btn-orange { background: var(--orange); color: #fff; }
.btn-orange:hover { filter: brightness(.95); color: #fff; }
.btn-outline { background: transparent; border: 1.5px solid var(--border); color: var(--navy); }
.btn-outline:hover { border-color: var(--blue); color: var(--blue); }
.btn-ghost {
  background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.28); color: #fff;
}
.btn-ghost:hover { background: rgba(255,255,255,.2); color: #fff; }
.btn-danger { background: #DC2626; color: #fff; }
.btn-sm { padding: .45rem .8rem; font-size: .85rem; }
.btn-lg { padding: .95rem 1.4rem; font-size: 1rem; }
.btn-block { width: 100%; }

.badge {
  display: inline-flex; align-items: center; padding: .2rem .55rem;
  border-radius: 999px; font-size: .75rem; font-weight: 700;
  background: #DBEAFE; color: #1D4ED8;
}
.badge-green { background: #DCFCE7; color: #15803D; }
.badge-orange { background: #FFEDD5; color: #C2410C; }
.badge-gray { background: #F1F5F9; color: #475569; }

.alert {
  padding: .85rem 1rem; border-radius: 10px; margin-bottom: 1rem; font-weight: 600;
}
.alert-success { background: #DCFCE7; color: #166534; }
.alert-error { background: #FEE2E2; color: #991B1B; }

.form-group { margin-bottom: 1rem; }
.form-group label { display: block; font-weight: 700; margin-bottom: .35rem; font-size: .9rem; }
.form-control, select.form-control, textarea.form-control {
  width: 100%; border: 1.5px solid var(--border); border-radius: 10px;
  padding: .7rem .9rem; font: inherit; background: #fff; color: var(--text);
}
.form-control:focus { outline: 2px solid #BFDBFE; border-color: var(--blue); }
textarea.form-control { min-height: 120px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-check { display: flex; align-items: center; gap: .5rem; margin: .5rem 0; }

.card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.25rem; box-shadow: var(--shadow);
}
.card-soft { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 1.1rem; }

/* Landing */
.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(12px);
  background: rgba(248,250,252,.9);
  border-bottom: 1px solid rgba(226,232,240,.8);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 68px; gap: 1rem;
}
.brand {
  display: flex; align-items: center; gap: .55rem;
  font-weight: 800; font-size: 1.25rem; color: var(--navy);
}
.brand-mark {
  width: 34px; height: 34px; border-radius: 10px;
  background: linear-gradient(135deg, var(--blue), #0EA5E9);
  display: grid; place-items: center; color: #fff; font-size: .9rem;
}
.nav-links { display: flex; gap: .35rem; align-items: center; }
.nav-links a,
.nav-link {
  display: inline-flex; align-items: center; gap: .4rem;
  color: var(--text); font-weight: 600; font-size: .92rem;
  padding: .45rem .7rem; border-radius: 10px;
  transition: background .15s ease, color .15s ease;
}
.nav-links a:hover,
.nav-link:hover { background: #EEF2FF; color: var(--blue); }
.nav-links a.is-current,
.nav-link.is-current { background: #DBEAFE; color: var(--blue); }
.nav-icon {
  width: 16px; height: 16px; flex-shrink: 0;
  stroke-linecap: round; stroke-linejoin: round;
}
.nav-actions { display: flex; gap: .6rem; align-items: center; }

/* ===== Elevated landing ===== */
.hero-bleed {
  position: relative;
  min-height: min(92vh, 820px);
  display: flex;
  align-items: flex-end;
  padding: 7.5rem 0 4.5rem;
  overflow: hidden;
  color: #fff;
  background: #07111f;
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.hero-bg-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 60% 40%, #000 20%, transparent 75%);
}
.hero-bg-glow {
  position: absolute; border-radius: 50%; filter: blur(60px); opacity: .55;
  animation: glowDrift 10s ease-in-out infinite alternate;
}
.hero-bg-glow-a {
  width: 420px; height: 420px; top: -80px; right: 8%;
  background: rgba(37,99,235,.55);
}
.hero-bg-glow-b {
  width: 320px; height: 320px; bottom: 10%; left: -40px;
  background: rgba(249,115,22,.35);
  animation-delay: -4s;
}
.hero-stage {
  position: absolute; right: max(1.5rem, calc((100vw - 1120px) / 2));
  top: 52%; transform: translateY(-48%);
  width: min(460px, 42vw); display: grid; gap: 1rem;
}
.hero-panel {
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(15,23,42,.55);
  backdrop-filter: blur(10px);
  border-radius: 18px;
  box-shadow: 0 30px 60px rgba(0,0,0,.35);
  animation: panelFloat 7s ease-in-out infinite;
}
.hero-panel-side { animation-delay: -2.5s; padding: 1rem 1.1rem; }
.hero-panel-top {
  display: flex; align-items: center; gap: .4rem;
  padding: .75rem 1rem; border-bottom: 1px solid rgba(255,255,255,.08);
}
.hero-dot { width: 8px; height: 8px; border-radius: 50%; background: rgba(255,255,255,.35); }
.hero-dot:nth-child(1) { background: #F97316; }
.hero-dot:nth-child(2) { background: #FBBF24; }
.hero-dot:nth-child(3) { background: #22C55E; }
.hero-panel-title { margin-left: .4rem; font-size: .78rem; color: #94A3B8; font-weight: 600; }
.hero-panel-body { padding: 1rem; display: grid; grid-template-columns: repeat(3, 1fr); gap: .7rem; }
.hero-kpi {
  background: rgba(255,255,255,.06); border-radius: 12px; padding: .75rem;
}
.hero-kpi span { display: block; font-size: .72rem; color: #94A3B8; font-weight: 600; }
.hero-kpi strong { font-size: 1.15rem; color: #fff; }
.hero-chart {
  grid-column: 1 / -1; display: flex; align-items: flex-end; gap: .45rem;
  height: 84px; padding: .4rem .2rem 0;
}
.hero-chart i {
  flex: 1; display: block; height: var(--h);
  border-radius: 6px 6px 2px 2px;
  background: linear-gradient(180deg, #60A5FA, #2563EB);
  animation: barRise 1.2s ease both;
}
.hero-chart i:nth-child(odd) { background: linear-gradient(180deg, #FDBA74, #F97316); }
.hero-copy-line {
  font-size: .9rem; font-weight: 700; color: #E2E8F0; padding: .35rem 0;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.hero-copy-line.dim { color: #94A3B8; font-weight: 500; font-size: .84rem; border: 0; }

.hero-content { position: relative; z-index: 2; max-width: 640px; }
.hero-brand {
  font-size: clamp(3rem, 8vw, 5.2rem);
  font-weight: 800; letter-spacing: -.04em; line-height: .95;
  margin: 0 0 .85rem; color: #fff;
  text-shadow: 0 10px 40px rgba(0,0,0,.35);
}
.hero-bleed h1 {
  font-size: clamp(1.45rem, 2.8vw, 2.05rem);
  font-weight: 650; max-width: 18ch; margin: 0 0 1rem;
  color: #E2E8F0; letter-spacing: -.02em;
}
.hero-lead {
  font-size: 1.08rem; color: #94A3B8; max-width: 40ch; margin: 0;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.6rem; }

.section { padding: 5rem 0; }
.section-kicker {
  display: inline-block; font-size: .78rem; font-weight: 800;
  letter-spacing: .12em; text-transform: uppercase; color: var(--blue);
  margin: 0 0 .7rem;
}
.section-head { max-width: 640px; margin-bottom: 2.4rem; }
.section-head h2 { font-size: clamp(1.7rem, 3.2vw, 2.35rem); letter-spacing: -.02em; }
.section-action { margin-top: 1.6rem; }
.container.narrow { width: min(760px, calc(100% - 2rem)); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.2rem; }

.section-problem { background: #fff; border-block: 1px solid var(--border); }
.problem-rail { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; }
.problem-item {
  padding: 1.6rem 1.4rem 1.6rem 0; border-right: 1px solid var(--border);
}
.problem-item:last-child { border-right: 0; padding-right: 0; }
.problem-item:not(:first-child) { padding-left: 1.4rem; }
.problem-index {
  display: block; font-size: .85rem; font-weight: 800; color: var(--orange);
  letter-spacing: .08em; margin-bottom: .7rem;
}
.problem-item h3 { font-size: 1.15rem; }
.problem-item p { color: var(--muted); margin: 0; }

.section-solution {
  background:
    radial-gradient(circle at 90% 20%, rgba(37,99,235,.08), transparent 35%),
    var(--bg);
}
.solution-grid {
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 2.5rem; align-items: center;
}
.solution-list {
  margin: 1.4rem 0 0; padding: 0; list-style: none;
  display: grid; gap: .7rem;
}
.solution-list li {
  position: relative; padding-left: 1.4rem; font-weight: 600; color: var(--navy);
}
.solution-list li::before {
  content: ""; position: absolute; left: 0; top: .55rem;
  width: .55rem; height: .55rem; border-radius: 2px; background: var(--orange);
}
.solution-visual {
  background: #0F172A; color: #fff; border-radius: 22px; padding: 1.8rem;
  min-height: 280px; display: flex; flex-direction: column; justify-content: center;
  box-shadow: 0 25px 50px rgba(15,23,42,.18);
}
.solution-flow { display: grid; gap: .55rem; }
.flow-node {
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.1);
  border-radius: 12px; padding: .85rem 1rem; font-weight: 700;
}
.flow-node.accent { background: rgba(249,115,22,.2); border-color: rgba(249,115,22,.45); }
.flow-line {
  width: 2px; height: 14px; margin-left: 1.2rem;
  background: linear-gradient(#334155, #64748B);
}
.solution-caption { color: #94A3B8; margin: 1.2rem 0 0; font-size: .9rem; }

.section-path { background: #fff; border-block: 1px solid var(--border); }
.path-track { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem; }
.path-card {
  padding: 1.4rem 1.3rem 1.5rem; border-top: 3px solid var(--blue);
  background: var(--bg); border-radius: 0 0 16px 16px;
}
.path-card:nth-child(2) { border-top-color: #0EA5E9; }
.path-card:nth-child(3) { border-top-color: var(--orange); }
.path-phase {
  display: block; font-size: .75rem; font-weight: 800; letter-spacing: .08em;
  text-transform: uppercase; color: var(--muted); margin-bottom: .55rem;
}
.path-card h3 { font-size: 1.15rem; }
.path-card p { color: var(--muted); margin: 0; }
.path-note { margin-top: 1.4rem; color: var(--muted); font-weight: 600; }

.course-spotlight {
  display: grid; grid-template-columns: 1.25fr .75fr; gap: 1.5rem;
  background: linear-gradient(135deg, #0F172A 0%, #1E3A8A 100%);
  color: #fff; border-radius: 24px; padding: 2rem; overflow: hidden;
}
.course-spotlight h2 { color: #fff; font-size: clamp(1.4rem, 2.5vw, 1.9rem); }
.course-spotlight .muted { color: #94A3B8; }
.course-spotlight .section-kicker { color: #93C5FD; }
.course-spotlight-meta {
  display: flex; flex-wrap: wrap; gap: .5rem; margin: 1rem 0 1.4rem;
}
.course-spotlight-meta span {
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.12);
  border-radius: 8px; padding: .35rem .65rem; font-size: .82rem; font-weight: 700;
}
.course-spotlight-meta .is-free { background: rgba(34,197,94,.2); color: #86EFAC; }
.course-spotlight-aside { display: grid; gap: .55rem; align-content: center; }
.spotlight-module {
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1);
  border-radius: 12px; padding: .85rem 1rem; color: #CBD5E1; font-weight: 600; font-size: .92rem;
}
.spotlight-module.active {
  background: rgba(249,115,22,.22); border-color: rgba(249,115,22,.5); color: #fff;
}

.section-templates { background: var(--bg); }
.template-strip {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: .9rem;
}
.template-chip {
  display: block; background: #fff; border: 1px solid var(--border);
  border-radius: 14px; padding: 1.1rem; color: inherit;
  transition: transform .2s ease, border-color .2s ease;
}
.template-chip:hover { transform: translateY(-3px); border-color: #BFDBFE; color: inherit; }
.template-cat {
  display: block; font-size: .72rem; font-weight: 800; letter-spacing: .06em;
  text-transform: uppercase; color: var(--muted); margin-bottom: .45rem;
}
.template-chip strong { color: var(--navy); font-size: .98rem; }

.section-pricing { background: #fff; border-block: 1px solid var(--border); }
.pricing-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem; align-items: stretch; }
.pricing-card {
  background: var(--bg); border: 1px solid var(--border); border-radius: 18px; padding: 1.6rem;
  display: flex; flex-direction: column;
}
.pricing-card > p { color: var(--muted); flex: 1; }
.pricing-card.featured {
  background: #fff; border-color: var(--blue);
  box-shadow: 0 18px 40px rgba(37,99,235,.12);
}
.pricing-tag {
  display: inline-block; align-self: flex-start; margin: 0 0 .6rem;
  background: #DBEAFE; color: #1D4ED8; font-size: .75rem; font-weight: 800;
  padding: .25rem .55rem; border-radius: 6px;
}
.price { font-size: 2rem; font-weight: 800; color: var(--navy); margin-bottom: .5rem; }

.faq details {
  background: #fff; border: 1px solid var(--border); border-radius: 12px;
  padding: 1rem 1.1rem; margin-bottom: .7rem;
}
.faq summary { font-weight: 700; cursor: pointer; color: var(--navy); }
.section-faq { background: var(--bg); }

.section-final { padding-top: 2rem; }
.final-cta {
  text-align: center; padding: 3.2rem 1.5rem;
  background:
    radial-gradient(circle at 30% 20%, rgba(37,99,235,.35), transparent 40%),
    radial-gradient(circle at 80% 80%, rgba(249,115,22,.25), transparent 35%),
    #0B1220;
  border-radius: 24px; color: #fff;
}
.final-brand { color: #fff; font-size: clamp(2.4rem, 5vw, 3.6rem); margin-bottom: .4rem; }
.final-cta h2 { color: #fff; font-size: clamp(1.4rem, 2.5vw, 1.9rem); }
.final-cta p { color: #94A3B8; max-width: 420px; margin: .4rem auto 0; }
.final-cta .hero-cta { justify-content: center; }

.reveal {
  opacity: 0; transform: translateY(22px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal-delay-1 { transition-delay: .1s; }
.reveal-delay-2 { transition-delay: .2s; }
.reveal-delay-3 { transition-delay: .3s; }
.reveal.is-visible { opacity: 1; transform: none; }

@keyframes glowDrift {
  from { transform: translate(0, 0) scale(1); }
  to { transform: translate(-20px, 18px) scale(1.08); }
}
@keyframes panelFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
@keyframes barRise {
  from { transform: scaleY(0); transform-origin: bottom; opacity: .3; }
  to { transform: scaleY(1); transform-origin: bottom; opacity: 1; }
}

.site-footer {
  background: var(--navy); color: #CBD5E1; padding: 3rem 0 2rem; margin-top: 0;
}
.site-footer a { color: #E2E8F0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 2rem; }
.footer-brand { color: #fff; font-size: 1.4rem; font-weight: 800; }

/* App shell */
.app-shell { display: grid; grid-template-columns: 250px 1fr; min-height: 100vh; }
.sidebar {
  background: var(--navy); color: #CBD5E1; padding: 1.2rem .9rem;
  position: sticky; top: 0; height: 100vh; overflow: auto;
}
.sidebar .brand { color: #fff; margin: .3rem .5rem 1.4rem; }
.sidebar a {
  display: flex; align-items: center; gap: .6rem;
  color: #CBD5E1; padding: .7rem .8rem; border-radius: 10px; font-weight: 600; margin-bottom: .2rem;
}
.sidebar a:hover, .sidebar a.active { background: rgba(255,255,255,.08); color: #fff; }
.main { padding: 1.4rem 1.5rem 3rem; }
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 1.3rem; gap: 1rem; flex-wrap: wrap;
}
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin-bottom: 1.3rem; }
.stat-card { background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 1rem 1.1rem; }
.stat-card .label { color: var(--muted); font-size: .85rem; font-weight: 600; }
.stat-card .value { font-size: 1.6rem; font-weight: 800; color: var(--navy); }

.progress {
  height: 8px; background: #E2E8F0; border-radius: 999px; overflow: hidden;
}
.progress > span { display: block; height: 100%; background: linear-gradient(90deg, var(--blue), #38BDF8); }

.table-wrap { overflow: auto; background: #fff; border: 1px solid var(--border); border-radius: 14px; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: .85rem 1rem; text-align: left; border-bottom: 1px solid var(--border); font-size: .92rem; }
th { background: #F8FAFC; color: var(--muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; }

.course-card h3 { font-size: 1.05rem; }
.course-meta { display: flex; flex-wrap: wrap; gap: .4rem; margin: .7rem 0; }

.lesson-layout { display: grid; grid-template-columns: 280px 1fr; gap: 1.2rem; }
.lesson-nav {
  background: #fff; border: 1px solid var(--border); border-radius: 14px;
  padding: 1rem; max-height: calc(100vh - 120px); overflow: auto; position: sticky; top: 80px;
}
.lesson-nav h4 { font-size: .85rem; color: var(--muted); margin: .8rem 0 .4rem; text-transform: uppercase; letter-spacing: .04em; }
.lesson-nav a {
  display: block; padding: .45rem .55rem; border-radius: 8px; color: var(--text); font-size: .9rem; margin-bottom: .15rem;
}
.lesson-nav a.active { background: #DBEAFE; color: var(--blue); font-weight: 700; }
.lesson-nav a.done { color: #15803D; }
.lesson-content { background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 1.4rem; }
.video-wrap { position: relative; padding-bottom: 56.25%; height: 0; margin-bottom: 1.2rem; border-radius: 12px; overflow: hidden; background: #0F172A; }
.video-wrap iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.content-body { font-size: 1.02rem; }
.content-body ul { padding-left: 1.2rem; }
.lesson-actions { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: 1.4rem; justify-content: space-between; }

.auth-wrap {
  min-height: 100vh; display: grid; place-items: center; padding: 2rem 1rem;
  background:
    radial-gradient(circle at 20% 20%, rgba(37,99,235,.15), transparent 35%),
    radial-gradient(circle at 80% 80%, rgba(249,115,22,.12), transparent 30%),
    var(--bg);
}
.auth-card { width: min(440px, 100%); background: #fff; border: 1px solid var(--border); border-radius: 18px; padding: 1.8rem; box-shadow: var(--shadow); }
.auth-card h1 { font-size: 1.5rem; }

.mobile-nav {
  display: none; position: fixed; bottom: 0; left: 0; right: 0; z-index: 60;
  background: #fff; border-top: 1px solid var(--border);
  grid-template-columns: repeat(5, 1fr);
}
.mobile-nav a {
  display: flex; flex-direction: column; align-items: center; gap: .15rem;
  padding: .55rem .2rem; font-size: .68rem; font-weight: 700; color: var(--muted);
}
.mobile-nav a.active { color: var(--blue); }

.filters { display: flex; flex-wrap: wrap; gap: .6rem; margin-bottom: 1.2rem; }
.filters .form-control { width: auto; min-width: 140px; }

.template-pre {
  white-space: pre-wrap; background: #0F172A; color: #E2E8F0;
  padding: 1.2rem; border-radius: 12px; font-family: ui-monospace, monospace; font-size: .9rem;
  max-height: 480px; overflow: auto;
}

/* ===== Courses catalog ===== */
.page-main { padding: 0; }
.catalog-hero {
  padding: 3.2rem 0 2rem;
  background:
    radial-gradient(circle at 12% 20%, rgba(37,99,235,.14), transparent 40%),
    radial-gradient(circle at 88% 0%, rgba(249,115,22,.1), transparent 32%),
    linear-gradient(180deg, #EEF4FF 0%, #F8FAFC 100%);
  border-bottom: 1px solid var(--border);
}
.catalog-title {
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  letter-spacing: -.03em;
  max-width: 14ch;
  margin-bottom: .7rem;
}
.catalog-lead {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 46ch;
  margin: 0;
}
.catalog-body { padding: 2rem 0 4rem; }
.catalog-filters {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 1rem;
  margin-bottom: 1.2rem;
  box-shadow: 0 10px 30px rgba(15,23,42,.04);
}
.catalog-search { margin-bottom: .75rem; }
.catalog-filter-row {
  display: flex; flex-wrap: wrap; gap: .6rem; align-items: center;
}
.catalog-filter-row .form-control { width: auto; min-width: 150px; flex: 1; }
.catalog-chips {
  display: flex; flex-wrap: wrap; gap: .45rem; margin-top: .9rem;
  padding-top: .9rem; border-top: 1px solid var(--border);
}
.chip {
  display: inline-flex; align-items: center;
  padding: .4rem .8rem; border-radius: 999px;
  background: #F1F5F9; color: var(--text); font-size: .85rem; font-weight: 700;
  border: 1px solid transparent;
}
.chip:hover { color: var(--blue); background: #DBEAFE; }
.chip.is-active {
  background: var(--navy); color: #fff; border-color: var(--navy);
}
.chip.is-active:hover { color: #fff; }
.catalog-meta {
  margin: 0 0 1.2rem; color: var(--muted); font-size: .95rem;
}
.catalog-meta strong { color: var(--navy); }

.catalog-featured {
  display: grid; grid-template-columns: 1.3fr .7fr; gap: 1.4rem;
  background: linear-gradient(135deg, #0F172A 0%, #1E3A8A 100%);
  color: #fff; border-radius: 22px; padding: 1.8rem; margin-bottom: 1.5rem;
  text-decoration: none; overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease;
}
.catalog-featured:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 40px rgba(30,58,138,.25);
  color: #fff;
}
.catalog-featured-label {
  display: inline-block; font-size: .75rem; font-weight: 800;
  letter-spacing: .08em; text-transform: uppercase; color: #93C5FD;
  margin-bottom: .55rem;
}
.catalog-featured h2 {
  color: #fff; font-size: clamp(1.3rem, 2.4vw, 1.75rem); margin-bottom: .55rem;
}
.catalog-featured p { color: #94A3B8; margin-bottom: 1rem; }
.catalog-featured-stats {
  display: flex; flex-wrap: wrap; gap: .45rem; margin-bottom: 1.1rem;
}
.catalog-featured-stats span {
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.12);
  border-radius: 8px; padding: .3rem .6rem; font-size: .8rem; font-weight: 700; color: #E2E8F0;
}
.catalog-featured-stats .is-free { background: rgba(34,197,94,.2); color: #86EFAC; border-color: transparent; }
.catalog-featured-cta { font-weight: 800; color: #FDBA74; }
.catalog-featured-visual {
  display: grid; gap: .5rem; align-content: center;
}
.cf-module {
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1);
  border-radius: 12px; padding: .75rem 1rem; color: #CBD5E1; font-weight: 600; font-size: .9rem;
}
.cf-module.is-on {
  background: rgba(249,115,22,.22); border-color: rgba(249,115,22,.5); color: #fff;
}

.catalog-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem;
}
.catalog-card {
  background: #fff; border: 1px solid var(--border); border-radius: 18px;
  padding: 1.25rem; display: flex; flex-direction: column;
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.catalog-card:hover {
  transform: translateY(-4px);
  border-color: #BFDBFE;
  box-shadow: 0 16px 32px rgba(37,99,235,.08);
}
.catalog-card-top {
  display: flex; justify-content: space-between; align-items: center;
  gap: .5rem; margin-bottom: .7rem;
}
.catalog-cat {
  font-size: .72rem; font-weight: 800; letter-spacing: .06em;
  text-transform: uppercase; color: var(--muted);
}
.catalog-card h3 {
  font-size: 1.08rem; margin-bottom: .45rem;
}
.catalog-card h3 a { color: var(--navy); }
.catalog-card h3 a:hover { color: var(--blue); }
.catalog-card > p {
  color: var(--muted); font-size: .92rem; flex: 1; margin-bottom: .9rem;
}
.catalog-card-meta {
  display: flex; flex-wrap: wrap; gap: .4rem; margin-bottom: 1rem;
}
.catalog-card-meta span {
  background: #F8FAFC; border: 1px solid var(--border);
  border-radius: 8px; padding: .25rem .55rem;
  font-size: .78rem; font-weight: 700; color: #475569;
}
.catalog-card-actions { margin-top: auto; }
.catalog-empty {
  text-align: center; background: #fff; border: 1px dashed var(--border);
  border-radius: 18px; padding: 3rem 1.5rem;
}

/* Course detail */
.detail-hero {
  padding: 2.6rem 0 2rem;
  background:
    radial-gradient(circle at 80% 10%, rgba(37,99,235,.12), transparent 35%),
    #0F172A;
  color: #fff;
}
.detail-hero .container { display: grid; grid-template-columns: 1.4fr .8fr; gap: 1.5rem; align-items: end; }
.detail-kicker { color: #93C5FD; font-size: .75rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; margin-bottom: .6rem; }
.detail-hero h1 { color: #fff; font-size: clamp(1.6rem, 3vw, 2.3rem); max-width: 18ch; }
.detail-hero .lead { color: #94A3B8; max-width: 48ch; }
.detail-tags { display: flex; flex-wrap: wrap; gap: .4rem; margin: 1rem 0 0; }
.detail-tags span {
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.12);
  border-radius: 8px; padding: .3rem .6rem; font-size: .8rem; font-weight: 700; color: #E2E8F0;
}
.detail-enroll {
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.14);
  border-radius: 18px; padding: 1.3rem;
}
.detail-enroll .price { color: #fff; font-size: 1.8rem; margin-bottom: .3rem; }
.detail-enroll .meta { color: #94A3B8; font-size: .88rem; margin-bottom: 1rem; }
.detail-body { padding: 2.2rem 0 4rem; }
.detail-layout { display: grid; grid-template-columns: 1.4fr .8fr; gap: 1.4rem; align-items: start; }
.detail-panel {
  background: #fff; border: 1px solid var(--border); border-radius: 16px; padding: 1.3rem; margin-bottom: 1rem;
}
.detail-panel h2, .detail-panel h3 { font-size: 1.15rem; }
.benefit-list, .curriculum-lessons { margin: .6rem 0 0; padding-left: 1.1rem; }
.benefit-list li, .curriculum-lessons li { margin-bottom: .35rem; color: var(--muted); }
.skill-row { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: .6rem; }
.module-block { border-top: 1px solid var(--border); padding: 1rem 0; }
.module-block:first-of-type { border-top: 0; padding-top: 0; }
.module-block strong { display: block; color: var(--navy); margin-bottom: .25rem; }
.sticky-side { position: sticky; top: 88px; }

/* ===== Templates library ===== */
.tpl-hero {
  padding: 3.2rem 0 2rem;
  background:
    radial-gradient(circle at 18% 10%, rgba(249,115,22,.12), transparent 35%),
    radial-gradient(circle at 85% 30%, rgba(37,99,235,.12), transparent 40%),
    linear-gradient(180deg, #FFF7ED 0%, #F8FAFC 100%);
  border-bottom: 1px solid var(--border);
}
.tpl-title {
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  letter-spacing: -.03em;
  max-width: 14ch;
  margin-bottom: .7rem;
}
.tpl-lead {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 46ch;
  margin: 0;
}
.tpl-body { padding: 2rem 0 4rem; }
.tpl-filters {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 1rem;
  margin-bottom: 1.2rem;
  box-shadow: 0 10px 30px rgba(15,23,42,.04);
}
.tpl-search { margin-bottom: .75rem; }
.tpl-filter-row { display: flex; flex-wrap: wrap; gap: .6rem; }

.tpl-featured {
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 1.4rem;
  background: linear-gradient(135deg, #0F172A 0%, #1E293B 55%, #9A3412 140%);
  color: #fff; border-radius: 22px; padding: 1.8rem; margin-bottom: 1.5rem;
  text-decoration: none; overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease;
}
.tpl-featured:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 40px rgba(15,23,42,.25);
  color: #fff;
}
.tpl-featured-label {
  display: inline-block; font-size: .75rem; font-weight: 800;
  letter-spacing: .08em; text-transform: uppercase; color: #FDBA74;
  margin-bottom: .55rem;
}
.tpl-featured h2 {
  color: #fff; font-size: clamp(1.3rem, 2.4vw, 1.75rem); margin-bottom: .55rem;
}
.tpl-featured p { color: #94A3B8; margin-bottom: 1rem; }
.tpl-featured-cta { font-weight: 800; color: #FDBA74; }
.tpl-preview {
  background: rgba(0,0,0,.25); border: 1px solid rgba(255,255,255,.1);
  border-radius: 14px; padding: 1rem; overflow: hidden;
}
.tpl-preview pre {
  margin: 0; white-space: pre-wrap; color: #CBD5E1;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: .82rem; line-height: 1.55; max-height: 180px; overflow: hidden;
}

.tpl-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem;
}
.tpl-card {
  background: #fff; border: 1px solid var(--border); border-radius: 18px;
  padding: 1.25rem; display: flex; flex-direction: column;
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.tpl-card:hover {
  transform: translateY(-4px);
  border-color: #FED7AA;
  box-shadow: 0 16px 32px rgba(249,115,22,.08);
}
.tpl-card-top {
  display: flex; justify-content: space-between; align-items: center;
  gap: .5rem; margin-bottom: .7rem;
}
.tpl-card h3 { font-size: 1.08rem; margin-bottom: .45rem; }
.tpl-card h3 a { color: var(--navy); }
.tpl-card h3 a:hover { color: var(--orange); }
.tpl-card > p {
  color: var(--muted); font-size: .92rem; flex: 1; margin-bottom: .9rem;
}
.tpl-card-meta {
  display: flex; flex-wrap: wrap; gap: .4rem; margin-bottom: 1rem;
}
.tpl-card-meta span {
  background: #F8FAFC; border: 1px solid var(--border);
  border-radius: 8px; padding: .25rem .55rem;
  font-size: .78rem; font-weight: 700; color: #475569;
}
.tpl-card-actions { margin-top: auto; }

.tpl-detail-hero {
  padding: 2.4rem 0 1.8rem;
  background:
    radial-gradient(circle at 70% 20%, rgba(249,115,22,.18), transparent 40%),
    #0F172A;
  color: #fff;
}
.tpl-back {
  display: inline-block; color: #94A3B8; font-weight: 700; font-size: .9rem;
  margin-bottom: 1rem;
}
.tpl-back:hover { color: #FDBA74; }
.tpl-detail-tags {
  display: flex; flex-wrap: wrap; gap: .4rem; margin-bottom: .8rem;
}
.tpl-detail-tags span {
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.12);
  border-radius: 8px; padding: .3rem .6rem; font-size: .8rem; font-weight: 700; color: #E2E8F0;
}
.tpl-detail-tags .is-free { background: rgba(34,197,94,.2); color: #86EFAC; border-color: transparent; }
.tpl-detail-tags .is-premium { background: rgba(249,115,22,.25); color: #FDBA74; border-color: transparent; }
.tpl-detail-hero h1 {
  color: #fff; font-size: clamp(1.6rem, 3vw, 2.3rem); max-width: 18ch; margin-bottom: .6rem;
}
.tpl-detail-lead { color: #94A3B8; max-width: 52ch; margin: 0; }
.tpl-detail-body { padding: 2rem 0 4rem; }
.tpl-detail-layout {
  display: grid; grid-template-columns: 1.45fr .75fr; gap: 1.4rem; align-items: start;
}
.tpl-content-wrap {
  background: #fff; border: 1px solid var(--border); border-radius: 18px; overflow: hidden;
}
.tpl-content-bar {
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  padding: .9rem 1.1rem; border-bottom: 1px solid var(--border); background: #F8FAFC;
}
.tpl-content-wrap .template-pre {
  margin: 0; border-radius: 0; max-height: none; min-height: 360px;
}
.tpl-locked {
  background: #fff; border: 1px dashed #FDBA74; border-radius: 18px;
  padding: 2rem 1.5rem; text-align: center;
}
.tpl-locked h2 { margin-bottom: .5rem; }
.tpl-locked p { color: var(--muted); max-width: 36ch; margin: 0 auto 1.2rem; }
.tpl-locked .hero-cta { justify-content: center; }

@media (max-width: 960px) {
  .hero-grid, .grid-3, .grid-2, .footer-grid, .form-row, .lesson-layout, .stat-grid,
  .problem-rail, .solution-grid, .path-track, .pricing-row, .course-spotlight,
  .catalog-grid, .catalog-featured, .detail-hero .container, .detail-layout,
  .tpl-grid, .tpl-featured, .tpl-detail-layout { grid-template-columns: 1fr; }
  .tpl-preview { display: none; }
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .mobile-nav { display: grid; }
  .main { padding-bottom: 5rem; }
  .nav-links { display: none; }
  .hero-bleed {
    min-height: auto;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    padding: 5.2rem 0 3rem;
  }
  .hero-bg {
    position: relative;
    inset: auto;
    min-height: 250px;
    margin-bottom: .5rem;
  }
  .hero-stage {
    position: relative;
    right: auto;
    top: auto;
    transform: none;
    width: min(100%, calc(100% - 2rem));
    margin: 0 auto;
    padding-top: .5rem;
  }
  .hero-content { max-width: none; }
  .hero-panel-side { display: none; }
  .problem-item, .problem-item:not(:first-child) {
    border-right: 0; border-bottom: 1px solid var(--border);
    padding: 1.2rem 0;
  }
  .problem-item:last-child { border-bottom: 0; }
  .course-spotlight-aside { display: none; }
  .pricing-card.featured { transform: none; }
  .catalog-featured-visual { display: none; }
  .catalog-filter-row .form-control { min-width: 0; width: 100%; }
  .sticky-side { position: static; }
}

@media (prefers-reduced-motion: reduce) {
  .reveal, .hero-bg-glow, .hero-panel, .hero-chart i {
    animation: none !important; transition: none !important;
  }
  .reveal { opacity: 1; transform: none; }
}