/* ============================================
   DOUBLE-E STUDIO — Portfolio Stylesheet
   ============================================ */

:root {
  --bg:          #080b10;
  --surface:     #111520;
  --surface-2:   #181e2d;
  --border:      rgba(255,255,255,0.07);
  --accent-grove:  #7c3aed;
  --accent-flora:  #22c55e;
  --accent-hair:   #3b82f6;
  --text:        #f1f5f9;
  --muted:       #64748b;
  --white:       #ffffff;
  --radius:      20px;
  --transition:  0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ─── Links ─────────────────────────────── */
a { color: inherit; text-decoration: none; }

/* ─── Scrollbar ─────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--surface-2); border-radius: 99px; }

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 5%;
  height: 68px;
  background: rgba(8,11,16,0.6);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}

.navbar.scrolled { background: rgba(8,11,16,0.92); }

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.nav-logo .logo-mark {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, #7c3aed, #3b82f6);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9rem;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  align-items: center;
}

.nav-links a {
  font-size: 0.9rem;
  color: var(--muted);
  font-weight: 500;
  transition: color var(--transition);
}
.nav-links a:hover, .nav-links a.active { color: var(--text); }

.nav-cta {
  background: linear-gradient(135deg, #7c3aed, #3b82f6);
  color: #fff !important;
  padding: 8px 20px;
  border-radius: 99px;
  font-size: 0.85rem !important;
  font-weight: 600 !important;
  transition: opacity var(--transition) !important;
}
.nav-cta:hover { opacity: 0.85; }

/* ─── Hamburger ──────────────────────────── */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================
   HERO / ABOUT SECTION
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 5% 80px;
  position: relative;
  overflow: hidden;
}

/* Animated gradient background */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 20% 40%, rgba(124,58,237,0.12) 0%, transparent 70%),
    radial-gradient(ellipse 50% 60% at 80% 60%, rgba(59,130,246,0.1) 0%, transparent 70%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.hero-brand { display: flex; flex-direction: column; gap: 28px; }

.studio-logo {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.studio-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(124,58,237,0.12);
  border: 1px solid rgba(124,58,237,0.25);
  padding: 6px 14px;
  border-radius: 99px;
  font-size: 0.8rem;
  font-weight: 600;
  color: #a78bfa;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  width: fit-content;
}

.studio-badge::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #a78bfa;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}

.studio-name {
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 0.95;
  background: linear-gradient(135deg, #f1f5f9 30%, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.studio-name span {
  display: block;
  font-size: 0.4em;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: linear-gradient(135deg, #7c3aed, #3b82f6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-top: 8px;
}

.hero-stats {
  display: flex;
  gap: 32px;
}

.stat-item { display: flex; flex-direction: column; gap: 2px; }
.stat-value {
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, #fff, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label { font-size: 0.78rem; color: var(--muted); font-weight: 500; text-transform: uppercase; letter-spacing: 0.06em; }

/* About card */
.hero-about {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 44px;
  position: relative;
  overflow: hidden;
}

.hero-about::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, #7c3aed, #3b82f6, #22c55e);
}

.about-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin-bottom: 16px;
}

.about-title {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  line-height: 1.25;
}

.about-text {
  font-size: 0.95rem;
  color: var(--muted);
  line-height: 1.75;
  margin-bottom: 28px;
}

.interests-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.interest-tag {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 9px 14px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--muted);
  transition: all var(--transition);
}
.interest-tag:hover { border-color: rgba(124,58,237,0.4); color: var(--text); }
.interest-tag .icon { font-size: 1rem; }

/* ============================================
   SECTION SHARED
   ============================================ */
section { padding: 100px 5%; }

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 72px;
}

.section-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin-bottom: 14px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin-bottom: 16px;
}

.section-sub {
  font-size: 1rem;
  color: var(--muted);
  line-height: 1.7;
}

/* ============================================
   APP SECTIONS
   ============================================ */
.apps-section { padding: 80px 5%; }

.app-card {
  max-width: 1200px;
  margin: 0 auto 80px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 28px;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  opacity: 0;
  transform: translateY(40px);
}

.app-card.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.7s ease, transform 0.7s ease, box-shadow var(--transition);
}

.app-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 32px 80px rgba(0,0,0,0.5);
}

.app-card.reverse { direction: rtl; }
.app-card.reverse > * { direction: ltr; }

/* App Image Panel */
.app-visual {
  position: relative;
  background: var(--surface-2);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 520px;
  overflow: hidden;
}

.app-card--grove .app-visual { background: linear-gradient(145deg, #0f0014, #1a0035, #0d1a2e); }
.app-card--flora .app-visual { background: linear-gradient(145deg, #071a0f, #0d2a1a, #0a1f0e); }
.app-card--hair  .app-visual { background: linear-gradient(145deg, #f0f4f8, #e8eff7, #dde8f0); }

.app-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.3;
}

.app-card--grove .app-visual::before {
  background: radial-gradient(ellipse at 50% 80%, rgba(124,58,237,0.5), transparent 60%);
}
.app-card--flora .app-visual::before {
  background: radial-gradient(ellipse at 50% 80%, rgba(34,197,94,0.4), transparent 60%);
}
.app-card--hair .app-visual::before {
  background: radial-gradient(ellipse at 50% 80%, rgba(59,130,246,0.3), transparent 60%);
}

.app-mockup {
  width: 220px;
  filter: drop-shadow(0 30px 60px rgba(0,0,0,0.5));
  position: relative;
  z-index: 1;
  transition: transform 0.5s ease;
}

.app-card:hover .app-mockup { transform: scale(1.04) translateY(-8px); }

.app-placeholder {
  width: 220px;
  height: 440px;
  background: rgba(255,255,255,0.05);
  border: 2px dashed rgba(255,255,255,0.12);
  border-radius: 36px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  color: rgba(255,255,255,0.3);
  font-size: 0.85rem;
  text-align: center;
  padding: 24px;
}

.app-placeholder .placeholder-icon { font-size: 2.5rem; }

/* App Info Panel */
.app-info {
  padding: 52px 52px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 20px;
}

.app-platform-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 99px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  width: fit-content;
}

.badge--cross { background: rgba(124,58,237,0.15); border: 1px solid rgba(124,58,237,0.3); color: #a78bfa; }
.badge--ios   { background: rgba(34,197,94,0.12); border: 1px solid rgba(34,197,94,0.25); color: #4ade80; }
.badge--hair  { background: rgba(59,130,246,0.12); border: 1px solid rgba(59,130,246,0.25); color: #60a5fa; }

/* Stat badges row */
.app-badges {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.stat-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border-radius: 99px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--muted);
  white-space: nowrap;
}

.stat-badge--date  { }
.stat-badge--dl    { color: #4ade80; border-color: rgba(34,197,94,0.25); background: rgba(34,197,94,0.08); }
.stat-badge--stars { color: #fbbf24; border-color: rgba(251,191,36,0.3);  background: rgba(251,191,36,0.08); }

.app-title {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.app-card--grove .app-title { color: #c4b5fd; }
.app-card--flora .app-title { color: #86efac; }
.app-card--hair  .app-title { color: #93c5fd; }

.app-tagline {
  font-size: 1rem;
  color: var(--muted);
  font-style: italic;
}

.app-description {
  font-size: 0.95rem;
  color: var(--muted);
  line-height: 1.78;
}

.app-features {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--muted);
}

.feature-icon {
  flex-shrink: 0;
  width: 20px; height: 20px;
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem;
  margin-top: 1px;
}

.app-card--grove .feature-icon { background: rgba(124,58,237,0.2); }
.app-card--flora .feature-icon { background: rgba(34,197,94,0.2); }
.app-card--hair  .feature-icon { background: rgba(59,130,246,0.2); }

.app-footer-info {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.info-chip {
  display: flex;
  align-items: center;
  gap: 5px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 99px;
  padding: 5px 12px;
  font-size: 0.78rem;
  color: var(--muted);
  font-weight: 500;
}

.info-chip .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #22c55e;
}

.app-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 99px;
  font-size: 0.9rem;
  font-weight: 600;
  width: fit-content;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
  text-decoration: none;
}

.cta--grove { background: linear-gradient(135deg, #7c3aed, #6d28d9); color: #fff; box-shadow: 0 8px 24px rgba(124,58,237,0.3); }
.cta--grove:hover { transform: translateY(-2px); box-shadow: 0 14px 36px rgba(124,58,237,0.45); }

.cta--flora { background: linear-gradient(135deg, #16a34a, #15803d); color: #fff; box-shadow: 0 8px 24px rgba(22,163,74,0.3); }
.cta--flora:hover { transform: translateY(-2px); box-shadow: 0 14px 36px rgba(22,163,74,0.45); }

.cta--hair { background: linear-gradient(135deg, #2563eb, #1d4ed8); color: #fff; box-shadow: 0 8px 24px rgba(37,99,235,0.3); }
.cta--hair:hover { transform: translateY(-2px); box-shadow: 0 14px 36px rgba(37,99,235,0.45); }

/* ============================================
   DIVIDER
   ============================================ */
.section-divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border) 20%, var(--border) 80%, transparent);
  margin: 0 5%;
  width: 90%;
}

/* ============================================
   CONTACT PAGE — HERO
   ============================================ */
.contact-hero {
  min-height: 45vh;
  display: flex;
  align-items: flex-end;
  padding: 120px 5% 60px;
  position: relative;
  overflow: hidden;
}

.contact-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 50% 60% at 70% 50%, rgba(59,130,246,0.1) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 30% 60%, rgba(124,58,237,0.08) 0%, transparent 60%);
  pointer-events: none;
}

.contact-hero-content { max-width: 700px; }

.contact-hero .section-label { text-align: left; }
.contact-hero .section-title { text-align: left; margin-bottom: 12px; }
.contact-hero .section-sub { text-align: left; }

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact-section { padding: 60px 5% 100px; }

.contact-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

/* Team cards */
.team-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  gap: 16px;
  opacity: 0;
  transform: translateY(30px);
}

.team-card.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s ease, transform 0.6s ease, box-shadow var(--transition), border-color var(--transition);
}

.team-card:hover {
  border-color: rgba(124,58,237,0.3);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

.team-avatar {
  width: 56px; height: 56px;
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
}

.avatar--m { background: linear-gradient(135deg, #7c3aed, #a855f7); }
.avatar--e { background: linear-gradient(135deg, #2563eb, #3b82f6); }

.team-name {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.team-role {
  font-size: 0.82rem;
  color: var(--muted);
  font-weight: 500;
}

.team-email {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--muted);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 16px;
  transition: all var(--transition);
  width: fit-content;
}

.team-email:hover {
  border-color: rgba(124,58,237,0.4);
  color: var(--text);
}

/* Studio contact card */
.studio-contact-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  align-items: center;
  position: relative;
  overflow: hidden;
  opacity: 0;
  transform: translateY(30px);
}

.studio-contact-card.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s ease 0.2s, transform 0.6s ease 0.2s;
}

.studio-contact-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, #7c3aed, #3b82f6, #22c55e);
}

.studio-email-group { display: flex; flex-direction: column; gap: 8px; }
.studio-contact-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.studio-email-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, #7c3aed, #3b82f6);
  color: #fff;
  padding: 14px 24px;
  border-radius: 14px;
  font-size: 0.95rem;
  font-weight: 600;
  width: fit-content;
  transition: opacity var(--transition), transform var(--transition);
}
.studio-email-btn:hover { opacity: 0.88; transform: translateY(-2px); }

/* GitHub links */
.github-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 240px;
}

.github-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.github-link {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 16px;
  font-size: 0.88rem;
  font-weight: 500;
  transition: all var(--transition);
}
.github-link:hover { border-color: rgba(124,58,237,0.4); transform: translateX(4px); }

.github-icon {
  width: 32px; height: 32px;
  background: var(--surface);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.github-username { font-weight: 600; }
.github-sub { font-size: 0.75rem; color: var(--muted); }

/* ============================================
   FOOTER
   ============================================ */
footer {
  border-top: 1px solid var(--border);
  padding: 40px 5%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 0.95rem;
}

.footer-copyright {
  font-size: 0.82rem;
  color: var(--muted);
}

.footer-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.footer-links a {
  font-size: 0.82rem;
  color: var(--muted);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--text); }

/* ============================================
   WHY WE BUILT IT — ACCORDION
   ============================================ */
.why-built {
  border-top: 1px solid var(--border);
  margin-top: 6px;
  padding-top: 14px;
}

.why-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  background: none;
  border: none;
  color: var(--text);
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0;
  gap: 8px;
  text-align: left;
}

.why-toggle-label {
  display: flex;
  align-items: center;
  gap: 8px;
}

.why-toggle-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  flex-shrink: 0;
  transition: transform 0.35s ease, background 0.3s ease;
  color: var(--muted);
}

.why-toggle[aria-expanded="true"] .why-toggle-icon {
  transform: rotate(180deg);
}

.app-card--grove .why-toggle:hover .why-toggle-icon { background: rgba(124,58,237,0.2); border-color: rgba(124,58,237,0.4); }
.app-card--flora .why-toggle:hover .why-toggle-icon { background: rgba(34,197,94,0.2);  border-color: rgba(34,197,94,0.35); }
.app-card--hair  .why-toggle:hover .why-toggle-icon { background: rgba(59,130,246,0.2);  border-color: rgba(59,130,246,0.4); }

.why-body {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.45s cubic-bezier(0.4, 0, 0.2, 1), padding-top 0.35s ease;
  padding-top: 0;
}

.why-body.open {
  max-height: 280px;
  padding-top: 14px;
}

.why-inner {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px 18px;
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.why-quote-mark {
  font-size: 2.2rem;
  line-height: 1;
  flex-shrink: 0;
  opacity: 0.25;
  margin-top: -4px;
}

.why-text {
  font-size: 0.87rem;
  color: var(--muted);
  line-height: 1.75;
}

/* ============================================
   FLOATING PARTICLES
   ============================================ */
.particles {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 2px; height: 2px;
  background: rgba(124,58,237,0.4);
  border-radius: 50%;
  animation: float-particle linear infinite;
}

@keyframes float-particle {
  0% { transform: translateY(100vh) scale(0); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateY(-10vh) scale(1); opacity: 0; }
}

/* ============================================
   ANIMATIONS (scroll-triggered)
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-in.visible { opacity: 1; transform: none; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .app-card, .app-card.reverse {
    grid-template-columns: 1fr;
    direction: ltr;
  }

  .app-visual { min-height: 300px; }

  .app-mockup { width: 160px; }

  .app-info { padding: 36px 28px; }

  .contact-grid { grid-template-columns: 1fr; }

  .studio-contact-card { grid-template-columns: 1fr; gap: 28px; }
}

@media (max-width: 640px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 68px; left: 0; right: 0;
    background: rgba(8,11,16,0.97);
    padding: 24px 5%;
    border-bottom: 1px solid var(--border);
    gap: 16px;
  }
  .hamburger { display: flex; }

  .hero { padding: 100px 5% 60px; }
  .hero-stats { gap: 20px; }
  .stat-value { font-size: 1.4rem; }

  .hero-about { padding: 28px; }
  .interests-grid { grid-template-columns: 1fr; }

  .app-info { padding: 28px 24px; }

  footer { flex-direction: column; text-align: center; }
  .footer-links { justify-content: center; }
}