/* MédiaGen Studio Inc. — Main Stylesheet
   Human-created, AI-assisted.
   Version: 1.0 | 2026-06-30
   ─────────────────────────────────────── */

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&display=swap');

/* ── CSS Variables ── */
:root {
  --bg:         #0F172A;
  --surface:    #1E293B;
  --surface-2:  #273549;
  --border:     #334155;
  --accent:     #FFD600;
  --accent-h:   #E6C200;
  --accent-dim: rgba(255, 214, 0, 0.12);
  --text:       #F1F5F9;
  --text-sec:   #94A3B8;
  --text-muted: #64748B;
  --radius:     12px;
  --radius-sm:  8px;
  --max-w:      1200px;
  --nav-h:      68px;
  --transition: 0.2s ease;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Space Grotesk', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ── Typography ── */
h1 { font-size: clamp(2.25rem, 5.5vw, 4rem); font-weight: 800; line-height: 1.1; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); font-weight: 700; line-height: 1.2; letter-spacing: -0.015em; }
h3 { font-size: 1.25rem; font-weight: 600; line-height: 1.3; }
h4 { font-size: 1rem; font-weight: 600; }
p  { color: var(--text-sec); }
.text-accent { color: var(--accent); }
.text-muted  { color: var(--text-muted); font-size: 0.875rem; }

/* ── Layout ── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding: 96px 0;
}
.section-sm {
  padding: 64px 0;
}

/* ── Navigation ── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
/* Logo image in nav */
.nav-logo {
  width: 38px;
  height: auto;
  display: block;
  flex-shrink: 0;
}
.nav-brand-text {
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-wordmark {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}

/* MédiaGen Studio three-color wordmark — sampled from logo mark */
.mgs-red    { color: #FF1A1A; }   /* vivid red — bottom tail of the g */
.mgs-yellow { color: #FFD600; }   /* vivid yellow — matches Contact button and logo */
.mgs-green  { color: #00EDBE; }   /* neon cyan-teal — top S curve of the g */
.nav-tagline {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-left: 1px solid var(--border);
  padding-left: 10px;
  display: none;
}
@media (min-width: 640px) {
  .nav-tagline { display: block; }
}
/* Center label in nav — "Educational video content" */
.nav-center-label {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: none;
}
@media (min-width: 900px) {
  .nav-center-label { display: block; }
}
/* Make nav-inner relative so absolute centering works */
.nav-inner {
  position: relative;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-sec);
  padding: 6px 14px;
  border-radius: 8px;
  transition: color var(--transition), background var(--transition);
}
.nav-links a:hover { color: var(--text); background: var(--surface); }
.nav-links a.active { color: var(--accent); }
.nav-links a.nav-yellow { color: #FFD600; }
.nav-links a.nav-yellow:hover { color: #FFE44D; background: var(--surface); }
.nav-links .btn-nav {
  background: #FFD600;
  color: #0F172A;
  font-weight: 600;
  padding: 7px 18px;
}
.nav-links .btn-nav:hover { background: #FFE44D; color: #0F172A; }
.nav-mobile-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-sec);
  cursor: pointer;
  padding: 7px 10px;
  border-radius: var(--radius-sm);
  font-size: 1.25rem;
  line-height: 1;
}
@media (max-width: 640px) {
  .nav-mobile-toggle { display: block; }
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 16px;
    gap: 4px;
  }
  .nav-links.open a { width: 100%; text-align: left; padding: 10px 16px; }
}

/* ── Language switcher ── */
.lang-sep {
  width: 1px;
  height: 18px;
  background: var(--border);
  align-self: center;
  margin: 0 4px;
  display: list-item;
  list-style: none;
}
.lang-switch {
  display: flex;
  align-items: center;
  gap: 2px;
}
.lang-btn {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  padding: 4px 6px;
  border-radius: 4px;
  transition: color var(--transition), background var(--transition);
  line-height: 1;
}
.lang-btn:hover { color: var(--text) !important; background: var(--surface) !important; }
.lang-btn.lang-active { color: var(--accent) !important; }
@media (max-width: 640px) {
  .lang-sep { display: none; }
  .lang-switch { padding: 6px 16px; }
  .lang-switch .lang-btn { padding: 6px 8px; width: auto !important; text-align: left; }
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  text-decoration: none;
}
.btn-primary {
  background: var(--accent);
  color: #0F172A;
}
.btn-primary:hover { background: var(--accent-h); transform: translateY(-1px); }
.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-dim); }

/* ── Hero ── */
.hero {
  padding: 120px 0 96px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 600px;
  background: radial-gradient(ellipse, rgba(245, 158, 11, 0.07) 0%, transparent 70%);
  pointer-events: none;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-dim);
  border: 1px solid rgba(245, 158, 11, 0.25);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 99px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 28px;
}
.hero-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.hero h1 {
  max-width: 800px;
  margin: 0 auto 24px;
}
.hero-sub {
  font-size: 1.125rem;
  color: var(--text-sec);
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.65;
}
.hero-cta {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── Logo placeholder ── */
.logo-placeholder {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 40px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 20px;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.logo-placeholder-icon {
  width: 40px;
  height: 40px;
  background: var(--accent-dim);
  border: 1px dashed rgba(245, 158, 11, 0.4);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1rem;
}

/* ── Section Labels ── */
.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}
.section-heading { margin-bottom: 16px; }
.section-sub {
  color: var(--text-sec);
  max-width: 520px;
  margin-bottom: 56px;
}
.section-sub.wide { max-width: 680px; }

/* ── Cards ── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: border-color var(--transition), transform var(--transition);
}
.card:hover {
  border-color: rgba(245, 158, 11, 0.35);
  transform: translateY(-2px);
}
.card-icon {
  width: 48px;
  height: 48px;
  background: var(--accent-dim);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 20px;
}
.card h3 { margin-bottom: 10px; color: var(--text); }
.card p { font-size: 0.95rem; }

/* ── Grid ── */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
@media (max-width: 900px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
}

/* ── Pipeline / Divider ── */
.pipeline-section {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.pipeline-row {
  display: flex;
  align-items: stretch;
  gap: 0;
  position: relative;
}
.pipeline-step {
  flex: 1;
  padding: 40px 32px;
  position: relative;
  text-align: center;
}
.pipeline-step:not(:last-child)::after {
  content: '→';
  position: absolute;
  right: -12px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem;
  color: var(--accent);
  z-index: 1;
}
.pipeline-step-num {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}
.pipeline-step h3 { font-size: 1.1rem; color: var(--text); margin-bottom: 8px; }
.pipeline-step p { font-size: 0.88rem; color: var(--text-muted); }
@media (max-width: 768px) {
  .pipeline-row { flex-direction: column; }
  .pipeline-step:not(:last-child)::after { content: '↓'; right: auto; left: 50%; top: auto; bottom: -20px; transform: translateX(-50%); }
  .pipeline-step:not(:last-child) { padding-bottom: 56px; }
}

/* ── Stat Callout ── */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.stat-item {
  background: var(--surface);
  padding: 36px 28px;
  text-align: center;
}
.stat-value {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 8px;
}
.stat-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}
@media (max-width: 768px) {
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 440px) {
  .stat-grid { grid-template-columns: 1fr; }
}

/* ── Principles / Three-Layer ── */
.layer-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.layer-item {
  display: flex;
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
}
.layer-item:last-child { border-bottom: none; }
.layer-num {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  background: var(--accent-dim);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
}
.layer-content h4 { color: var(--text); margin-bottom: 6px; }
.layer-content p { font-size: 0.93rem; }

/* ── Vertical Page ── */
.vertical-card {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 40px;
  align-items: start;
  padding: 48px 0;
  border-bottom: 1px solid var(--border);
}
.vertical-card:last-child { border-bottom: none; }
.vertical-meta { position: sticky; top: calc(var(--nav-h) + 24px); }
.vertical-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.vertical-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}
.vertical-meta h2 { font-size: 1.75rem; margin-bottom: 12px; }
.vertical-meta p { font-size: 0.93rem; }
.vertical-layers { display: flex; flex-direction: column; gap: 20px; }
.v-layer {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 20px 24px;
}
.v-layer-title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}
.v-layer h4 { color: var(--text); margin-bottom: 8px; }
.v-layer p { font-size: 0.9rem; }
.coming-soon-card {
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 40px;
  text-align: center;
}
.coming-soon-card h3 { color: var(--text-sec); margin-bottom: 8px; }
@media (max-width: 768px) {
  .vertical-card { grid-template-columns: 1fr; gap: 24px; }
  .vertical-meta { position: static; }
}

/* ── Contact ── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 32px;
}
.contact-info-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.contact-info-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  background: var(--accent-dim);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}
.contact-info-item h4 { font-size: 0.8rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 4px; }
.contact-info-item a { color: var(--accent); font-weight: 500; }
.contact-info-item a:hover { text-decoration: underline; }
.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
}
.form-group { margin-bottom: 20px; }
.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-sec);
  margin-bottom: 8px;
}
.form-input,
.form-textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  padding: 12px 16px;
  outline: none;
  transition: border-color var(--transition);
}
.form-input:focus,
.form-textarea:focus { border-color: var(--accent); }
.form-textarea { min-height: 120px; resize: vertical; }
.form-note {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 16px;
  text-align: center;
}
@media (max-width: 768px) {
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
}

/* ── CTA Banner ── */
.cta-banner {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.08) 0%, rgba(245, 158, 11, 0.03) 100%);
  border: 1px solid rgba(245, 158, 11, 0.2);
  border-radius: 16px;
  padding: 64px 48px;
  text-align: center;
}
.cta-banner h2 { margin-bottom: 16px; }
.cta-banner p { max-width: 480px; margin: 0 auto 36px; }
.cta-banner .hero-cta { margin: 0; }

/* ── About page specifics ── */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.about-intro-text h2 { margin-bottom: 20px; }
.about-intro-text p { margin-bottom: 16px; }
.about-aside { display: flex; flex-direction: column; gap: 16px; }
.aside-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 20px 24px;
}
.aside-card-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 6px;
}
.aside-card p { font-size: 0.9rem; }
@media (max-width: 900px) {
  .about-intro { grid-template-columns: 1fr; gap: 40px; }
}

/* ── Footer ── */
.footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 48px 0 32px;
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}
.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 32px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.footer-brand { max-width: 300px; }
.footer-wordmark {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}
/* Footer inherits the neon classes — no override needed */
.footer-brand p { font-size: 0.88rem; line-height: 1.6; }
.footer-nav h5 {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 14px;
}
.footer-nav ul { display: flex; flex-direction: column; gap: 8px; }
.footer-nav a { font-size: 0.9rem; color: var(--text-sec); transition: color var(--transition); }
.footer-nav a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p { font-size: 0.82rem; color: var(--text-muted); }
.footer-lang {
  font-size: 0.78rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-lang a { color: var(--text-sec); transition: color var(--transition); }
.footer-lang a:hover { color: var(--accent); }

/* ── Divider ── */
.divider {
  height: 1px;
  background: var(--border);
  margin: 0;
}

/* ── Utility ── */
.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mb-8  { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.text-center { text-align: center; }
.w-full { width: 100%; }

/* ── Scroll fade-in animation ── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Hero full-image overlay layout ── */
.hero-fullimg {
  padding: 0;
  background: var(--bg);
}

/* Image container — fills edge to edge, no bars */
.hero-img-wrap {
  position: relative;
  width: 100%;
  line-height: 0;
}
.hero-full-img {
  display: block;
  width: 100%;
  height: auto;
}

/* Overlay — minimal: brand mark + badge only, gradient at top for legibility */
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(15, 23, 42, 0.72) 0%,
    rgba(15, 23, 42, 0.72) 0%,
    rgba(15, 23, 42, 0)    45%,
    rgba(15, 23, 42, 0)    55%,
    rgba(15, 23, 42, 0.60) 100%
  );
  display: flex;
  align-items: flex-start;
  justify-content: flex-end;
  padding: 24px 32px;
}
.hero-logo-wrap { display: none; }
.hero-logo { width: 72px; height: auto; }

/* ── Hero split layout — educator right, text left ── */
.hero-split {
  display: flex;
  align-items: stretch;
  min-height: 560px;
  padding: 0;
  background: var(--bg);
}
.hero-split .hero-content {
  flex: 1 1 55%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 64px 48px 64px 5%;
}
.hero-split .hero-img-wrap {
  flex: 0 0 45%;
  overflow: hidden;
  position: relative;
  min-height: 420px;
}
.hero-split .hero-img-wrap img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: right center;
}

@media (max-width: 900px) {
  .hero-split {
    flex-direction: column-reverse;
  }
  .hero-split .hero-img-wrap {
    width: 100%;
    min-height: 280px;
    flex: none;
  }
  .hero-split .hero-content {
    padding: 40px 20px;
  }
}