/* v4techlab — Material 3 design tokens + global styles */

/* ========== Design Tokens ========== */
:root {
  /* Primary palette — Warm Amber (default) */
  --md-primary: #B45309;
  --md-primary-container: #FEF3C7;
  --md-on-primary: #FFFFFF;
  --md-on-primary-container: #3F2206;

  /* Neutral surfaces — M3 tonal */
  --md-surface: #FFFBF5;
  --md-surface-container-lowest: #FFFFFF;
  --md-surface-container-low: #FAF5EE;
  --md-surface-container: #F4EEE5;
  --md-surface-container-high: #EDE6DA;

  --md-on-surface: #1F1B16;
  --md-on-surface-variant: #5C5547;
  --md-outline: #857C6E;
  --md-outline-variant: #D9D0C2;

  --md-error: #B3261E;
  --md-on-error: #FFFFFF;
  --md-error-container: #F9DEDC;
  --md-on-error-container: #410E0B;

  --md-success: #2E7D32;

  /* Shape (M3) */
  --md-shape-xs: 4px;
  --md-shape-sm: 8px;
  --md-shape-md: 12px;
  --md-shape-lg: 16px;
  --md-shape-xl: 28px;
  --md-shape-full: 9999px;

  /* Elevation */
  --md-elev-1: 0 1px 2px rgba(0,0,0,0.05), 0 1px 3px rgba(0,0,0,0.08);
  --md-elev-2: 0 2px 6px rgba(0,0,0,0.06), 0 4px 12px rgba(0,0,0,0.08);
  --md-elev-3: 0 6px 14px rgba(0,0,0,0.08), 0 12px 30px rgba(0,0,0,0.12);
  --md-elev-4: 0 6px 10px 4px rgba(0,0,0,0.10), 0 2px 3px rgba(0,0,0,0.07);

  /* Typography */
  --font-display: 'Plus Jakarta Sans', system-ui, sans-serif;
  --font-body: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  /* Motion */
  --md-easing-emphasized: cubic-bezier(0.2, 0, 0, 1);
  --md-easing-standard: cubic-bezier(0.2, 0, 0, 1);
}

/* ========== Reset ========== */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}
@media (max-width: 640px) {
  html { scroll-padding-top: 80px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  font-family: var(--font-body);
  background: var(--md-surface);
  color: var(--md-on-surface);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; }

/* ========== Type Scale (M3) ========== */
.display-l { font-family: var(--font-display); font-size: clamp(40px, 6vw, 72px); line-height: 1.05; letter-spacing: -0.03em; font-weight: 700; }
.display-m { font-family: var(--font-display); font-size: clamp(28px, 3.4vw, 40px); line-height: 1.15; letter-spacing: -0.02em; font-weight: 600; }
.headline-l { font-family: var(--font-display); font-size: clamp(28px, 3.5vw, 40px); line-height: 1.15; letter-spacing: -0.01em; font-weight: 500; }
.headline-m { font-family: var(--font-display); font-size: clamp(22px, 2.5vw, 28px); line-height: 1.2; font-weight: 500; }
.title-l { font-size: 22px; line-height: 1.3; font-weight: 600; letter-spacing: -0.005em; }
.title-m { font-size: 16px; line-height: 1.5; font-weight: 600; letter-spacing: 0.01em; }
.body-l { font-size: 17px; line-height: 1.6; }
.body-m { font-size: 15px; line-height: 1.55; }
.label-l { font-size: 14px; line-height: 1.4; font-weight: 600; letter-spacing: 0.02em; }
.label-m { font-size: 12px; line-height: 1.3; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; }

/* ========== Layout ========== */
.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
}
@media (max-width: 640px) {
  .container { padding: 0 20px; }
}

section {
  padding: 96px 0;
  position: relative;
}
@media (max-width: 768px) {
  section { padding: 72px 0; }
}

/* ========== App Bar ========== */
.app-bar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  background: color-mix(in oklab, var(--md-surface) 78%, transparent);
  border-bottom: 1px solid transparent;
  transition: border-color 240ms var(--md-easing-standard), background 240ms var(--md-easing-standard);
}
.app-bar.scrolled {
  border-bottom-color: var(--md-outline-variant);
  background: color-mix(in oklab, var(--md-surface) 92%, transparent);
}
.app-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  padding: 0 32px;
  max-width: 1240px;
  margin: 0 auto;
}
@media (max-width: 640px) {
  .app-bar-inner { padding: 0 20px; height: 64px; }
}

/* Brand */
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 19px;
  letter-spacing: -0.01em;
  text-decoration: none;
  color: var(--md-on-surface);
}
.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: var(--md-shape-md);
  background: var(--md-primary);
  color: var(--md-on-primary);
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -0.02em;
  position: relative;
  overflow: hidden;
}
.brand-mark::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 50%, color-mix(in oklab, white 22%, transparent) 50%);
}

/* Navigation */
.nav {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-links {
  display: flex;
  gap: 4px;
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .cta-bar { display: none !important; }
  .nav .lang-toggle { display: none; }
}

.nav-link {
  text-decoration: none;
  color: var(--md-on-surface-variant);
  font-size: 14px;
  font-weight: 500;
  padding: 10px 16px;
  border-radius: var(--md-shape-full);
  transition: background 180ms, color 180ms;
}
.nav-link:hover {
  background: var(--md-surface-container);
  color: var(--md-on-surface);
}

/* Hamburger */
.hamburger {
  display: none;
  width: 44px;
  height: 44px;
  border: none;
  background: transparent;
  border-radius: var(--md-shape-full);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  color: var(--md-on-surface);
  transition: background 160ms;
}
.hamburger:hover { background: var(--md-surface-container); }
@media (max-width: 768px) {
  .hamburger { display: inline-flex; }
}
.hb-bars {
  position: relative;
  width: 22px;
  height: 16px;
  display: block;
}
.hb-bars span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 240ms var(--md-easing-emphasized), opacity 200ms, top 240ms;
}
.hb-bars span:nth-child(1) { top: 2px; }
.hb-bars span:nth-child(2) { top: 7px; }
.hb-bars span:nth-child(3) { top: 12px; }
.hb-bars.open span:nth-child(1) { top: 7px; transform: rotate(45deg); }
.hb-bars.open span:nth-child(2) { opacity: 0; }
.hb-bars.open span:nth-child(3) { top: 7px; transform: rotate(-45deg); }

/* Mobile menu drawer */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 49;
  background: color-mix(in oklab, var(--md-on-surface) 28%, transparent);
  opacity: 0;
  pointer-events: none;
  transition: opacity 240ms var(--md-easing-emphasized);
}
.mobile-menu.open {
  opacity: 1;
  pointer-events: auto;
}
.mobile-menu-panel {
  position: absolute;
  top: 64px;
  left: 16px;
  right: 16px;
  background: var(--md-surface-container-lowest);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--md-shape-xl);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  box-shadow: var(--md-elev-3);
  transform: translateY(-12px);
  opacity: 0;
  transition: transform 280ms var(--md-easing-emphasized), opacity 240ms var(--md-easing-emphasized);
}
.mobile-menu.open .mobile-menu-panel {
  transform: translateY(0);
  opacity: 1;
}
.m-link {
  text-decoration: none;
  color: var(--md-on-surface);
  font-size: 17px;
  font-weight: 500;
  padding: 14px 16px;
  border-radius: var(--md-shape-md);
  transition: background 160ms;
  display: block;
}
.m-link:hover, .m-link:active { background: var(--md-surface-container); }
.m-divider {
  height: 1px;
  background: var(--md-outline-variant);
  margin: 12px 4px;
}
@media (min-width: 769px) {
  .mobile-menu { display: none; }
}

/* ========== Buttons (M3) ========== */
.btn {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.01em;
  border: none;
  cursor: pointer;
  transition: box-shadow 180ms, transform 180ms, background 180ms;
  text-decoration: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}
.btn-filled {
  background: var(--md-primary);
  color: var(--md-on-primary);
  height: 44px;
  padding: 0 24px;
  border-radius: var(--md-shape-full);
  box-shadow: var(--md-elev-1);
}
.btn-filled:hover { box-shadow: var(--md-elev-2); transform: translateY(-1px); }
.btn-filled:active { transform: translateY(0); box-shadow: var(--md-elev-1); }

.btn-tonal {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  height: 44px;
  padding: 0 24px;
  border-radius: var(--md-shape-full);
}
.btn-tonal:hover { background: color-mix(in oklab, var(--md-primary-container) 88%, var(--md-primary)); }

.btn-text {
  background: transparent;
  color: var(--md-primary);
  height: 40px;
  padding: 0 14px;
  border-radius: var(--md-shape-full);
}
.btn-text:hover { background: color-mix(in oklab, var(--md-primary) 8%, transparent); }

.btn-outlined {
  background: transparent;
  color: var(--md-on-surface);
  height: 44px;
  padding: 0 22px;
  border-radius: var(--md-shape-full);
  border: 1px solid var(--md-outline);
}
.btn-outlined:hover { background: var(--md-surface-container); }

.btn-icon {
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: var(--md-shape-full);
  background: transparent;
  color: var(--md-on-surface-variant);
}
.btn-icon:hover { background: var(--md-surface-container); }

.btn svg { width: 18px; height: 18px; flex-shrink: 0; }

/* Material ripple */
.ripple {
  position: absolute;
  border-radius: 50%;
  transform: scale(0);
  animation: ripple-in 600ms var(--md-easing-emphasized);
  background: currentColor;
  opacity: 0.18;
  pointer-events: none;
}
@keyframes ripple-in {
  to { transform: scale(2.4); opacity: 0; }
}

/* ========== Language toggle ========== */
.lang-toggle {
  display: inline-flex;
  background: var(--md-surface-container);
  border-radius: var(--md-shape-full);
  padding: 4px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.lang-toggle a,
.lang-toggle button {
  border: none;
  background: transparent;
  padding: 6px 14px;
  border-radius: var(--md-shape-full);
  cursor: pointer;
  color: var(--md-on-surface-variant);
  font: inherit;
  text-decoration: none;
  outline: none;
  -webkit-tap-highlight-color: transparent;
  transition: background 180ms, color 180ms;
}
.lang-toggle a:hover,
.lang-toggle a:focus,
.lang-toggle a:active,
.lang-toggle a:visited,
.lang-toggle button:hover,
.lang-toggle button:focus,
.lang-toggle button:active {
  text-decoration: none;
  color: var(--md-on-surface-variant);
  outline: none;
}
.lang-toggle a:not(.active):hover,
.lang-toggle button:not(.active):hover {
  background: var(--md-surface-container-high);
  color: var(--md-on-surface);
}
.lang-toggle a:focus-visible,
.lang-toggle button:focus-visible {
  outline: 2px solid var(--md-primary);
  outline-offset: 2px;
}
.lang-toggle a.active,
.lang-toggle a.active:hover,
.lang-toggle a.active:focus,
.lang-toggle a.active:active,
.lang-toggle a.active:visited,
.lang-toggle button.active,
.lang-toggle button.active:hover,
.lang-toggle button.active:focus,
.lang-toggle button.active:active {
  background: var(--md-primary);
  color: var(--md-on-primary);
}

/* ========== Hero ========== */
.hero {
  padding: 160px 0 96px;
  position: relative;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 64px;
  align-items: center;
}
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero { padding: 120px 0 64px; }
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px 8px 12px;
  border-radius: var(--md-shape-full);
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.01em;
  margin-bottom: 28px;
}
.hero-eyebrow .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--md-primary);
  box-shadow: 0 0 0 4px color-mix(in oklab, var(--md-primary) 24%, transparent);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 color-mix(in oklab, var(--md-primary) 40%, transparent); }
  50% { box-shadow: 0 0 0 6px color-mix(in oklab, var(--md-primary) 0%, transparent); }
}

.hero h1 .accent {
  background: linear-gradient(120deg, var(--md-primary), color-mix(in oklab, var(--md-primary) 60%, #00d9ff));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p.lead {
  margin-top: 24px;
  color: var(--md-on-surface-variant);
  max-width: 560px;
}
.hero-actions {
  margin-top: 36px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* Hero visual */
.hero-visual {
  position: relative;
  aspect-ratio: 1 / 1;
  max-width: 540px;
  margin-left: auto;
}
@media (max-width: 960px) {
  .hero-visual { margin: 0 auto; max-width: 420px; }
}
.hv-canvas {
  position: absolute;
  inset: 0;
  border-radius: var(--md-shape-xl);
  background:
    radial-gradient(circle at 30% 30%, color-mix(in oklab, var(--md-primary) 14%, transparent), transparent 60%),
    radial-gradient(circle at 70% 70%, color-mix(in oklab, var(--md-primary) 22%, transparent), transparent 60%),
    var(--md-surface-container-low);
  overflow: hidden;
  border: 1px solid var(--md-outline-variant);
}
.hv-orbit {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
}
.hv-ring {
  position: absolute;
  border-radius: 50%;
  border: 1.5px dashed color-mix(in oklab, var(--md-primary) 36%, transparent);
  animation: orbit 28s linear infinite;
}
.hv-ring.r1 { width: 56%; height: 56%; }
.hv-ring.r2 { width: 78%; height: 78%; animation-duration: 44s; animation-direction: reverse; border-style: dotted; }
.hv-ring.r3 { width: 96%; height: 96%; animation-duration: 60s; }
@keyframes orbit { to { transform: rotate(360deg); } }

.hv-core {
  position: relative;
  width: 56%;
  aspect-ratio: 1;
  border-radius: var(--md-shape-xl);
  background:
    radial-gradient(circle at 30% 25%, color-mix(in oklab, white 28%, transparent), transparent 55%),
    linear-gradient(135deg, var(--md-primary), color-mix(in oklab, var(--md-primary) 60%, var(--md-on-primary-container)));
  box-shadow: var(--md-elev-3), 0 0 70px color-mix(in oklab, var(--md-primary) 30%, transparent);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--md-on-primary);
  padding: 18px;
  animation: float 6s ease-in-out infinite;
  overflow: hidden;
}
.hv-core::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, color-mix(in oklab, white 10%, transparent) 1px, transparent 1px),
    linear-gradient(to bottom, color-mix(in oklab, white 10%, transparent) 1px, transparent 1px);
  background-size: 18px 18px;
  mask-image: radial-gradient(circle at center, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(circle at center, black 30%, transparent 80%);
  pointer-events: none;
}
.hv-core-logo {
  position: relative;
  width: 56%;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
}
.hv-core-logo svg { width: 100%; height: 100%; filter: drop-shadow(0 2px 8px color-mix(in oklab, black 30%, transparent)); }
.hv-network {
  animation: netFloat 6s ease-in-out infinite;
}
@keyframes netFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}
.net-pulse {
  filter: drop-shadow(0 0 4px currentColor);
}
.net-cloud {
  animation: netCloudBreathe 4s ease-in-out infinite;
  transform-origin: center;
  transform-box: fill-box;
}
@keyframes netCloudBreathe {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.04); }
}
.net-core {
  animation: netCorePulse 1.6s ease-in-out infinite;
  transform-origin: 98px 98px;
}
@keyframes netCorePulse {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.6); }
}
.hv-core-wordmark {
  margin-top: 16px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(15px, 1.6vw, 19px);
  letter-spacing: -0.01em;
  line-height: 1;
}
.hv-core-wordmark .accent4 {
  color: color-mix(in oklab, var(--md-primary-container) 70%, white);
  font-weight: 800;
}
.hv-core-divider {
  margin-top: 10px;
  width: 26px;
  height: 2px;
  border-radius: 2px;
  background: color-mix(in oklab, white 50%, transparent);
}
.hv-core-slogan {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: clamp(10px, 0.95vw, 12px);
  letter-spacing: 0.12em;
  font-weight: 600;
  text-transform: uppercase;
  opacity: 0.92;
  max-width: 92%;
  text-wrap: balance;
}
@keyframes float {
  0%, 100% { transform: translateY(-4px); }
  50% { transform: translateY(4px); }
}

.hv-chip {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--md-surface-container-lowest);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--md-shape-full);
  font-size: 12px;
  font-weight: 600;
  color: var(--md-on-surface);
  box-shadow: var(--md-elev-2);
  font-family: var(--font-mono);
}
.hv-chip .swatch { width: 10px; height: 10px; border-radius: 50%; background: var(--md-primary); }
.hv-chip.c1 { top: 12%; left: 6%; animation: drift1 7s ease-in-out infinite; }
.hv-chip.c2 { top: 18%; right: 4%; animation: drift2 8s ease-in-out infinite; }
.hv-chip.c3 { bottom: 22%; left: 0%; animation: drift1 9s ease-in-out infinite reverse; }
.hv-chip.c4 { bottom: 10%; right: 10%; animation: drift2 10s ease-in-out infinite reverse; }
@keyframes drift1 {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
@keyframes drift2 {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(8px); }
}

.hv-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, color-mix(in oklab, var(--md-on-surface) 6%, transparent) 1px, transparent 1px),
    linear-gradient(to bottom, color-mix(in oklab, var(--md-on-surface) 6%, transparent) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: radial-gradient(circle at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(circle at center, black 30%, transparent 70%);
}

/* ========== Stats ========== */
.stats {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding-top: 36px;
  border-top: 1px solid var(--md-outline-variant);
}
@media (max-width: 640px) {
  .stats { grid-template-columns: 1fr 1fr; }
  .stats > :nth-child(3) { grid-column: span 2; }
}
.stat-num {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.4vw, 40px);
  line-height: 1;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--md-on-surface);
}
.stat-label {
  margin-top: 8px;
  color: var(--md-on-surface-variant);
  font-size: 13px;
  letter-spacing: 0.02em;
}

/* ========== Section headers ========== */
.section-eyebrow {
  display: inline-block;
  color: var(--md-primary);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.section-title {
  max-width: 780px;
  margin-bottom: 16px;
}
.section-sub {
  max-width: 640px;
  color: var(--md-on-surface-variant);
}

/* ========== Services ========== */
.services-grid {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 960px) {
  .services-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .services-grid { grid-template-columns: 1fr; }
}

.service-card {
  position: relative;
  overflow: hidden;
  background: var(--md-surface-container-low);
  border-radius: var(--md-shape-xl);
  padding: 32px 28px;
  border: 1px solid transparent;
  transition: background 220ms, border-color 220ms, transform 220ms;
  cursor: pointer;
}
.service-card:hover {
  background: var(--md-surface-container);
  border-color: var(--md-outline-variant);
  transform: translateY(-2px);
}
.service-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--md-shape-lg);
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  display: grid;
  place-items: center;
  margin-bottom: 24px;
  transition: background 220ms, color 220ms;
}
.service-card:hover .service-icon { background: var(--md-primary); color: var(--md-on-primary); }
.service-icon svg { width: 28px; height: 28px; }
.service-title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 12px;
}
.service-desc {
  color: var(--md-on-surface-variant);
  font-size: 15px;
  line-height: 1.55;
  margin: 0 0 20px;
}
.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.tag {
  display: inline-block;
  padding: 4px 10px;
  border-radius: var(--md-shape-full);
  background: var(--md-surface-container-high);
  color: var(--md-on-surface-variant);
  font-size: 12px;
  font-weight: 500;
}

/* ========== Featured project ========== */
.featured {
  background: var(--md-surface-container-low);
}
.featured-card {
  background: var(--md-surface-container-lowest);
  border-radius: var(--md-shape-xl);
  padding: 56px;
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 56px;
  align-items: center;
  border: 1px solid var(--md-outline-variant);
  box-shadow: var(--md-elev-1);
}
@media (max-width: 960px) {
  .featured-card { grid-template-columns: 1fr; padding: 36px 28px; gap: 36px; }
}

.featured-meta { font-size: 12px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--md-primary); }
.featured-title {
  font-family: var(--font-display);
  font-size: clamp(34px, 4vw, 48px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  font-weight: 600;
  margin: 16px 0 18px;
}
.featured-desc {
  color: var(--md-on-surface-variant);
  font-size: 17px;
  margin: 0 0 28px;
  max-width: 520px;
}
.featured-bullets {
  list-style: none;
  padding: 0;
  margin: 0 0 32px;
  display: grid;
  gap: 12px;
}
.featured-bullets li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 15px;
  color: var(--md-on-surface);
}
.featured-bullets li::before {
  content: '';
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--md-primary-container);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none'><path d='M5 12l5 5 9-10' stroke='%23000' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/></svg>");
  background-size: 12px;
  background-position: center;
  background-repeat: no-repeat;
  flex-shrink: 0;
  margin-top: 2px;
}
.featured-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* Tilt mockup */
.featured-mockup {
  position: relative;
  aspect-ratio: 1539 / 980;
  perspective: 1400px;
}
.tilt-wrap {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 320ms var(--md-easing-emphasized);
  transform-style: preserve-3d;
}
.mock-frame {
  position: absolute;
  inset: 0;
  border-radius: var(--md-shape-xl);
  background:
    linear-gradient(135deg,
      color-mix(in oklab, var(--md-primary) 18%, var(--md-surface-container)),
      color-mix(in oklab, var(--md-primary) 6%, var(--md-surface-container-low)));
  box-shadow: var(--md-elev-3);
  overflow: hidden;
  display: grid;
  place-items: center;
  padding: 24px;
}
.mock-screen {
  width: 100%;
  height: 100%;
  border-radius: var(--md-shape-lg);
  background: var(--md-surface-container-lowest);
  border: 1px solid var(--md-outline-variant);
  position: relative;
  overflow: hidden;
}
.mock-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  margin-top: 10px;
}
.mock-floating {
  position: absolute;
  background: var(--md-surface-container-lowest);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--md-shape-md);
  box-shadow: var(--md-elev-2);
  padding: 12px 14px;
  font-size: 12px;
  font-family: var(--font-mono);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
}
.mock-floating .swatch { width: 10px; height: 10px; border-radius: 50%; background: var(--md-primary); }
.mock-floating.f1 { top: 8%; left: -6%; transform: translateZ(40px); }
.mock-floating.f2 { bottom: 12%; right: -8%; transform: translateZ(40px); }

/* ========== Contact ========== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  align-items: start;
}
@media (max-width: 960px) {
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
}

.contact-info-list {
  list-style: none;
  padding: 0;
  margin: 32px 0 0;
  display: grid;
  gap: 20px;
}
.contact-info-list li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.contact-info-list .ico {
  width: 44px;
  height: 44px;
  border-radius: var(--md-shape-md);
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.contact-info-list .ico svg { width: 22px; height: 22px; }
.contact-info-list .label { font-size: 12px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--md-on-surface-variant); }
.contact-info-list .value { font-size: 16px; font-weight: 500; color: var(--md-on-surface); margin-top: 2px; }
.contact-info-list a.value:hover { color: var(--md-primary); }

/* M3 outlined text field */
.field {
  position: relative;
  margin-bottom: 20px;
}
.field input,
.field textarea {
  width: 100%;
  font: inherit;
  font-size: 16px;
  color: var(--md-on-surface);
  background: transparent;
  border: 1px solid var(--md-outline);
  border-radius: var(--md-shape-sm);
  padding: 18px 16px 14px;
  outline: none;
  transition: border-color 180ms, border-width 180ms;
  font-family: var(--font-body);
  resize: vertical;
}
.field textarea { min-height: 130px; line-height: 1.5; }
.field input:focus,
.field textarea:focus {
  border-color: var(--md-primary);
  border-width: 2px;
  padding: 17px 15px 13px;
}
.field label {
  position: absolute;
  left: 12px;
  top: 16px;
  background: var(--md-surface);
  padding: 0 6px;
  color: var(--md-on-surface-variant);
  font-size: 16px;
  pointer-events: none;
  transition: transform 180ms var(--md-easing-emphasized), color 180ms, font-size 180ms;
  transform-origin: left center;
}
.field input:focus + label,
.field input:not(:placeholder-shown) + label,
.field textarea:focus + label,
.field textarea:not(:placeholder-shown) + label {
  transform: translateY(-26px);
  font-size: 12px;
  font-weight: 600;
  color: var(--md-primary);
}
.field.error input,
.field.error textarea {
  border-color: var(--md-error);
}
.field.error input:focus + label,
.field.error input:not(:placeholder-shown) + label,
.field.error textarea:focus + label,
.field.error textarea:not(:placeholder-shown) + label,
.field.error label { color: var(--md-error); }
.field-help {
  margin-top: 6px;
  margin-left: 16px;
  font-size: 12px;
  color: var(--md-on-surface-variant);
  min-height: 16px;
}
.field.error .field-help { color: var(--md-error); }

/* Contact form card background */
.contact-form-card {
  background: var(--md-surface-container-low);
  border-radius: var(--md-shape-xl);
  padding: 36px;
  border: 1px solid var(--md-outline-variant);
}
.contact-form-card .field label {
  background: var(--md-surface-container-low);
}
@media (max-width: 640px) {
  .contact-form-card { padding: 28px 22px; }
}

/* Success state */
.success-state {
  text-align: center;
  padding: 24px 12px;
}
.success-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--md-primary-container);
  color: var(--md-primary);
  display: grid;
  place-items: center;
  margin: 0 auto 20px;
  animation: pop 540ms var(--md-easing-emphasized);
}
.success-icon svg { width: 38px; height: 38px; }
@keyframes pop {
  0% { transform: scale(0); }
  60% { transform: scale(1.1); }
  100% { transform: scale(1); }
}

/* ========== Footer ========== */
.footer {
  background: var(--md-surface-container);
  padding: 56px 0 36px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 36px;
}
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
}
.footer h4 {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--md-on-surface-variant);
  margin: 0 0 16px;
}
.footer ul {
  list-style: none;
  padding: 0; margin: 0;
  display: grid; gap: 10px;
}
.footer a {
  text-decoration: none;
  color: var(--md-on-surface);
  font-size: 14px;
}
.footer a:hover { color: var(--md-primary); }
.footer-bottom {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--md-outline-variant);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  color: var(--md-on-surface-variant);
  font-size: 13px;
}

/* ========== Scroll reveal ========== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 720ms var(--md-easing-emphasized), transform 720ms var(--md-easing-emphasized);
}
.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 600ms var(--md-easing-emphasized), transform 600ms var(--md-easing-emphasized);
}
.reveal-stagger.in-view > * {
  opacity: 1;
  transform: translateY(0);
}
.reveal-stagger.in-view > :nth-child(1) { transition-delay: 60ms; }
.reveal-stagger.in-view > :nth-child(2) { transition-delay: 140ms; }
.reveal-stagger.in-view > :nth-child(3) { transition-delay: 220ms; }
.reveal-stagger.in-view > :nth-child(4) { transition-delay: 300ms; }

/* ========== Back-to-top FAB ========== */
.fab {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 40;
  width: 56px;
  height: 56px;
  border-radius: var(--md-shape-lg);
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  border: none;
  cursor: pointer;
  display: grid;
  place-items: center;
  box-shadow: var(--md-elev-3);
  opacity: 0;
  transform: translateY(16px) scale(0.85);
  pointer-events: none;
  transition:
    opacity 280ms var(--md-easing-emphasized),
    transform 280ms var(--md-easing-emphasized),
    background 200ms,
    box-shadow 200ms;
  overflow: hidden;
}
.fab.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}
.fab:hover {
  background: color-mix(in oklab, var(--md-primary-container) 80%, var(--md-primary));
  box-shadow: var(--md-elev-4);
}
.fab:active { transform: translateY(0) scale(0.96); }
.fab svg { width: 24px; height: 24px; }
@media (max-width: 640px) {
  .fab { right: 16px; bottom: 16px; width: 52px; height: 52px; }
}

/* ========== JSF PrimeFaces overrides ========== */
/* PrimeFaces messages styling to match M3 */
.ui-messages-error { color: var(--md-error); }
.ui-message-error { color: var(--md-error); font-size: 12px; }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal, .reveal-stagger > * { opacity: 1; transform: none; }
}