:root {
  --brand: #0f766e;
  --brand-light: #14b8a6;
  --brand-dark: #134e4a;
  --bg: #f4f7f6;
  --text: #1e293b;
  --muted: #64748b;
  --white: #ffffff;
  --radius: 16px;
  --shadow: 0 8px 32px rgba(15, 118, 110, 0.12);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(15, 118, 110, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  color: var(--brand);
}

.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--brand-light), var(--brand));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav a {
  font-size: 14px;
  color: var(--muted);
  font-weight: 500;
  transition: color 0.2s;
}

.nav a:hover { color: var(--brand); }

.nav-cta {
  padding: 8px 18px;
  background: var(--brand);
  color: #fff !important;
  border-radius: 999px;
  font-weight: 600;
}

.nav-cta:hover { background: var(--brand-dark); }

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  padding: 80px 0 100px;
  background: linear-gradient(160deg, #ecfdf5 0%, #f0fdfa 40%, var(--bg) 100%);
}

.hero-bg {
  position: absolute;
  right: -80px;
  top: -40px;
  width: 480px;
  height: 480px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(20, 184, 166, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero-badge {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(15, 118, 110, 0.1);
  color: var(--brand);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(32px, 5vw, 48px);
  line-height: 1.2;
  font-weight: 800;
  color: var(--brand-dark);
  margin-bottom: 18px;
}

.hero h1 span { color: var(--brand-light); }

.hero-desc {
  font-size: 17px;
  color: var(--muted);
  margin-bottom: 32px;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-primary {
  background: var(--brand);
  color: #fff;
  box-shadow: 0 4px 16px rgba(15, 118, 110, 0.3);
}

.btn-primary:hover { background: var(--brand-dark); transform: translateY(-1px); }

.btn-outline {
  background: var(--white);
  color: var(--brand);
  border: 2px solid rgba(15, 118, 110, 0.2);
}

.btn-outline:hover { border-color: var(--brand); }

.hero-visual {
  position: relative;
}

.phone-mock {
  width: 280px;
  margin: 0 auto;
  background: #1e293b;
  border-radius: 36px;
  padding: 12px;
  box-shadow: var(--shadow), 0 24px 48px rgba(0,0,0,0.15);
}

.phone-screen {
  background: linear-gradient(180deg, #0f766e 0%, #134e4a 100%);
  border-radius: 28px;
  height: 520px;
  overflow: hidden;
  position: relative;
}

/* Hero map demo animation */
.demo-screen {
  background: #000;
}

.demo-map-scene,
.demo-preview-scene,
.demo-video-scene {
  position: absolute;
  inset: 0;
  transition: opacity 0.45s ease, transform 0.45s ease;
}

.demo-map-scene {
  z-index: 1;
  opacity: 1;
  transform: scale(1);
  background: linear-gradient(165deg, #0d9488 0%, #0f766e 48%, #134e4a 100%);
}

.demo-video-scene {
  z-index: 3;
  opacity: 0;
  transform: scale(1.05);
  pointer-events: none;
  background: #0f172a;
  overflow: hidden;
}

.demo-preview-scene {
  z-index: 2;
  opacity: 0;
  transform: scale(1.02);
  pointer-events: none;
  background: rgba(15, 23, 42, 0.35);
}

.demo-phase-preview .demo-map-scene {
  opacity: 0;
  transform: scale(0.96);
}

.demo-phase-preview .demo-preview-scene {
  opacity: 1;
  transform: scale(1);
}

.demo-phase-video .demo-map-scene,
.demo-phase-video .demo-preview-scene {
  opacity: 0;
  transform: scale(0.96);
}

.demo-phase-video .demo-video-scene {
  opacity: 1;
  transform: scale(1);
}

.demo-map-viewport {
  position: absolute;
  inset: 0;
  transform-origin: 50% 46%;
  transition: transform 1s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}

.demo-screen[data-zoom-step="0"] .demo-map-viewport { transform: scale(1.52); }
.demo-screen[data-zoom-step="1"] .demo-map-viewport { transform: scale(1.22); }
.demo-screen[data-zoom-step="2"] .demo-map-viewport { transform: scale(1); }
.demo-screen[data-zoom-step="3"] .demo-map-viewport { transform: scale(0.78); }

.demo-map-layer {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.demo-river {
  position: absolute;
  width: 140%;
  height: 56px;
  left: -20%;
  top: 42%;
  transform: rotate(-18deg);
  background: linear-gradient(90deg, transparent, rgba(125, 211, 252, 0.35), rgba(186, 230, 253, 0.2), transparent);
  animation: demo-river-flow 6s ease-in-out infinite;
}

.demo-road {
  position: absolute;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 999px;
}

.demo-road-1 {
  width: 120%;
  height: 10px;
  left: -10%;
  top: 28%;
  transform: rotate(12deg);
}

.demo-road-2 {
  width: 90%;
  height: 8px;
  right: -15%;
  top: 58%;
  transform: rotate(-8deg);
}

.demo-filter-bar {
  position: absolute;
  top: 16px;
  left: 14px;
  right: 14px;
  display: flex;
  gap: 4px;
  padding: 4px;
  background: rgba(255, 255, 255, 0.94);
  border-radius: 999px;
  z-index: 4;
}

.demo-filter {
  flex: 1;
  text-align: center;
  font-size: 10px;
  line-height: 22px;
  color: #64748b;
  border-radius: 999px;
  transition: background 1s ease, color 1s ease, transform 1s ease;
}

.demo-filter.active {
  background: #0d9488;
  color: #fff;
  font-weight: 700;
  transform: scale(1.02);
}

.demo-user-dot {
  position: absolute;
  left: 50%;
  top: 46%;
  width: 18px;
  height: 18px;
  transform: translate(-50%, -50%);
  z-index: 3;
}

.demo-user-core {
  position: absolute;
  inset: 5px;
  border-radius: 50%;
  background: #38bdf8;
  border: 2px solid #fff;
  box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.25);
}

.demo-user-ring {
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 2px solid rgba(56, 189, 248, 0.55);
  animation: demo-user-pulse 2.4s ease-out infinite;
}

.demo-scan {
  position: absolute;
  left: 50%;
  top: 46%;
  width: 24px;
  height: 24px;
  margin: -12px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.45);
  z-index: 2;
  animation: demo-scan-expand 3.2s ease-out infinite;
}

.demo-markers {
  position: absolute;
  inset: 0;
  z-index: 3;
}

.demo-marker {
  position: absolute;
  width: 28px;
  height: 32px;
  opacity: 0;
  transform: translate(-50%, -100%) scale(0.6);
  transition: opacity 0.5s ease, transform 1s ease, filter 0.35s ease;
  pointer-events: none;
}

.demo-marker.in-range {
  opacity: 1;
  transform: translate(-50%, -100%) scale(1);
}

.demo-marker::before {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 24px;
  height: 24px;
  margin-left: -12px;
  background: #0d9488;
  border-radius: 50% 50% 50% 0;
  transform: rotate(-45deg);
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.22);
}

.demo-marker span {
  position: absolute;
  left: 50%;
  top: 7px;
  transform: translateX(-50%);
  font-size: 10px;
  font-weight: 700;
  color: #fff;
  z-index: 1;
}

.demo-marker.cluster::before {
  background: #f59e0b;
}

.demo-marker.m1 { left: 28%; top: 34%; }
.demo-marker.m2 { left: 62%; top: 30%; }
.demo-marker.m3 { left: 74%; top: 52%; }
.demo-marker.m4 { left: 36%; top: 62%; }
.demo-marker.m5 { left: 58%; top: 68%; }

.demo-phase-tap #demoTapMarker {
  transform: translate(-50%, -112%) scale(1.18);
  filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.65));
  z-index: 6;
}

.demo-phase-tap .demo-map-scene {
  opacity: 1;
  transform: scale(1);
}

.demo-phase-tap .demo-map-scene .demo-bottom-card {
  opacity: 0;
}

.demo-tap-ripple {
  position: absolute;
  left: 62%;
  top: 30%;
  width: 18px;
  height: 18px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.85);
  opacity: 0;
  z-index: 5;
  pointer-events: none;
}

.demo-tap-hand {
  position: absolute;
  left: 62%;
  top: 30%;
  z-index: 8;
  opacity: 0;
  pointer-events: none;
  transform: translate(24px, -40px);
  filter: drop-shadow(0 3px 6px rgba(0, 0, 0, 0.35));
}

.demo-hand-icon {
  display: block;
}

.demo-phase-tap .demo-tap-hand {
  animation: demo-hand-tap 0.58s ease-in-out forwards;
}

.demo-phase-tap .demo-tap-ripple {
  animation: demo-tap-ring 0.55s ease-out 1;
  animation-delay: 0.38s;
}

.demo-locate-btn {
  position: absolute;
  right: 14px;
  bottom: 108px;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: #0d9488;
  color: #fff;
  font-size: 15px;
  line-height: 34px;
  text-align: center;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.2);
  z-index: 4;
}

.demo-bottom-card {
  position: absolute;
  bottom: 18px;
  left: 14px;
  right: 14px;
  background: rgba(255, 255, 255, 0.96);
  border-radius: 14px;
  padding: 12px 14px;
  z-index: 5;
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.18);
}

.demo-card-title {
  display: block;
  color: var(--brand);
  font-size: 13px;
  margin-bottom: 4px;
}

.demo-card-desc {
  display: block;
  font-size: 11px;
  color: #64748b;
  line-height: 1.45;
}

/* Spot preview sheet (click marker) */
.demo-preview-map-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(165deg, #0d9488 0%, #0f766e 48%, #134e4a 100%);
  opacity: 0.55;
}

.demo-preview-sheet {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  background: #fff;
  border-radius: 18px 18px 0 0;
  padding: 10px 14px 18px;
  transform: translateY(110%);
  transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
  box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.18);
}

.demo-phase-preview .demo-preview-sheet {
  transform: translateY(0);
}

.demo-preview-handle {
  width: 36px;
  height: 4px;
  border-radius: 999px;
  background: #e2e8f0;
  margin: 0 auto 10px;
}

.demo-preview-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--brand);
  margin-bottom: 10px;
}

.demo-preview-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px;
  border-radius: 12px;
  background: #f8fafc;
  margin-bottom: 8px;
}

.demo-preview-card.dim {
  opacity: 0.55;
}

.demo-preview-card.active-card {
  box-shadow: 0 0 0 2px #14b8a6;
  background: #ecfdf5;
}

.demo-preview-thumb {
  width: 52px;
  height: 52px;
  border-radius: 10px;
  background: linear-gradient(135deg, #0f766e, #14b8a6);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
  position: relative;
}

.demo-preview-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.demo-preview-play {
  color: #fff;
  font-size: 16px;
  text-shadow: 0 2px 8px rgba(0,0,0,0.35);
}

.demo-preview-meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.demo-preview-meta strong {
  font-size: 12px;
  color: #1e293b;
}

.demo-preview-meta span {
  font-size: 10px;
  color: #64748b;
}

.demo-preview-hand,
.demo-tap-hand.preview-hand {
  position: absolute;
  left: 50%;
  bottom: 72px;
  z-index: 8;
  opacity: 0;
  pointer-events: none;
  transform: translate(-20px, 20px);
  filter: drop-shadow(0 3px 6px rgba(0, 0, 0, 0.35));
}

.demo-phase-preview .demo-preview-hand {
  animation: demo-hand-tap-card 0.7s ease-in-out forwards;
}

.demo-phase-preview .demo-preview-card:first-of-type {
  animation: demo-card-highlight 0.7s ease-in-out forwards;
  animation-delay: 0.35s;
}

@keyframes demo-hand-tap-card {
  0% { opacity: 0; transform: translate(10px, 30px) scale(1.05); }
  30% { opacity: 1; transform: translate(-8px, 8px) scale(1); }
  55% { transform: translate(-12px, 4px) scale(0.88); }
  100% { opacity: 1; transform: translate(-12px, 4px) scale(1); }
}

@keyframes demo-card-highlight {
  0%, 100% { box-shadow: none; background: #f8fafc; }
  50% { box-shadow: 0 0 0 2px #14b8a6; background: #ecfdf5; }
}

/* Step hint under phone */
.demo-step-hint {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.demo-step-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #cbd5e1;
  transition: background 0.3s, transform 0.3s;
}

.demo-step-dot.active {
  background: var(--brand);
  transform: scale(1.25);
}

.demo-step-text {
  width: 100%;
  text-align: center;
  font-size: 13px;
  color: var(--muted);
  font-weight: 500;
  margin-top: 2px;
}

.demo-video-fallback {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, #0c4a6e 0%, #075985 45%, #0369a1 100%);
  overflow: hidden;
}

.demo-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: none;
}

.demo-video.is-playing {
  display: block;
}

.demo-video.is-playing + .demo-video-fallback {
  display: none;
}

.demo-water {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 30% 20%, rgba(255, 255, 255, 0.18), transparent 35%),
    linear-gradient(180deg, rgba(14, 165, 233, 0.35), rgba(2, 132, 199, 0.15));
  animation: demo-water-shimmer 3s ease-in-out infinite;
}

.demo-fish {
  position: absolute;
  left: 50%;
  top: 42%;
  font-size: 42px;
  transform: translate(-50%, -50%);
  animation: demo-fish-jump 2.4s ease-in-out infinite;
  filter: drop-shadow(0 8px 16px rgba(0, 0, 0, 0.25));
}

.demo-video-ui {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 14px 12px 16px;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.35) 0%, transparent 28%, transparent 62%, rgba(0, 0, 0, 0.55) 100%);
  color: #fff;
  z-index: 2;
}

.demo-video-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.demo-video-back {
  font-size: 11px;
  opacity: 0.92;
}

.demo-video-badge {
  font-size: 10px;
  padding: 4px 8px;
  border-radius: 999px;
  background: rgba(13, 148, 136, 0.88);
  animation: demo-badge-pulse 1.2s ease-in-out infinite;
}

.demo-video-side {
  position: absolute;
  right: 10px;
  bottom: 88px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.demo-side-btn {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
  font-size: 12px;
  line-height: 28px;
  text-align: center;
  backdrop-filter: blur(4px);
}

.demo-video-bottom {
  margin-top: auto;
}

.demo-video-author {
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 4px;
}

.demo-video-caption {
  font-size: 11px;
  line-height: 1.45;
  opacity: 0.92;
  margin-bottom: 10px;
}

.demo-video-progress {
  height: 3px;
  background: rgba(255, 255, 255, 0.25);
  border-radius: 999px;
  overflow: hidden;
}

.demo-video-progress span {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, #14b8a6, #5eead4);
  border-radius: inherit;
}

.demo-phase-video .demo-video-progress span {
  animation: demo-video-play 2s linear forwards;
}

@keyframes demo-river-flow {
  0%, 100% { transform: rotate(-18deg) translateX(0); opacity: 0.55; }
  50% { transform: rotate(-18deg) translateX(18px); opacity: 0.85; }
}

@keyframes demo-user-pulse {
  0% { transform: scale(0.7); opacity: 0.85; }
  70% { transform: scale(1.45); opacity: 0; }
  100% { transform: scale(1.45); opacity: 0; }
}

@keyframes demo-scan-expand {
  0% { transform: scale(0.4); opacity: 0.75; }
  100% { transform: scale(5.5); opacity: 0; }
}

@keyframes demo-tap-ring {
  0% { transform: translate(-50%, -50%) scale(0.6); opacity: 0.9; }
  100% { transform: translate(-50%, -50%) scale(3.2); opacity: 0; }
}

@keyframes demo-hand-tap {
  0% {
    opacity: 0;
    transform: translate(32px, -52px) scale(1.05);
  }
  28% {
    opacity: 1;
    transform: translate(10px, -22px) scale(1);
  }
  52% {
    transform: translate(2px, -10px) scale(0.88);
  }
  68% {
    transform: translate(0, -8px) scale(1);
  }
  100% {
    opacity: 1;
    transform: translate(0, -8px) scale(1);
  }
}

@keyframes demo-water-shimmer {
  0%, 100% { transform: translateY(0); opacity: 0.85; }
  50% { transform: translateY(-8px); opacity: 1; }
}

@keyframes demo-fish-jump {
  0%, 100% { transform: translate(-50%, -50%) rotate(-8deg); }
  45% { transform: translate(-50%, -68%) rotate(8deg) scale(1.08); }
  55% { transform: translate(-50%, -58%) rotate(0deg) scale(1.02); }
}

@keyframes demo-badge-pulse {
  0%, 100% { opacity: 0.88; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.04); }
}

@keyframes demo-video-play {
  0% { width: 0%; }
  100% { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  .demo-screen *,
  .demo-screen *::before {
    animation: none !important;
    transition: none !important;
  }

  .demo-video-progress span {
    width: 60%;
  }
}

/* Stats */
.stats-bar {
  margin-top: -40px;
  position: relative;
  z-index: 2;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px 32px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(15, 118, 110, 0.08);
}

.stat-item { text-align: center; }

.stat-num {
  font-size: 32px;
  font-weight: 800;
  color: var(--brand);
  line-height: 1.2;
}

.stat-label {
  font-size: 13px;
  color: var(--muted);
  margin-top: 4px;
}

/* Sections */
.section {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 48px;
}

.section-title h2 {
  font-size: 32px;
  font-weight: 800;
  color: var(--brand-dark);
  margin-bottom: 10px;
}

.section-title p {
  color: var(--muted);
  font-size: 16px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px 24px;
  border: 1px solid rgba(15, 118, 110, 0.08);
  transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: #ecfdf5;
  color: var(--brand);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
}

/* Steps */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.step-card {
  text-align: center;
  padding: 32px 24px;
}

.step-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.step-card h3 { font-size: 18px; margin-bottom: 8px; }
.step-card p { font-size: 14px; color: var(--muted); }

/* CTA */
.cta-section {
  padding: 80px 0;
}

.cta-box {
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-dark) 100%);
  border-radius: 24px;
  padding: 56px 48px;
  text-align: center;
  color: #fff;
}

.cta-box h2 {
  font-size: 28px;
  margin-bottom: 12px;
}

.cta-box p {
  opacity: 0.85;
  margin-bottom: 28px;
  font-size: 16px;
}

.cta-box .btn-primary {
  background: #fff;
  color: var(--brand);
  box-shadow: none;
}

.cta-box .btn-primary:hover { background: #ecfdf5; }

/* Footer */
.site-footer {
  background: var(--brand-dark);
  color: rgba(255,255,255,0.75);
  padding: 48px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 32px;
}

.footer-brand {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}

.footer-col h4 {
  color: #fff;
  font-size: 14px;
  margin-bottom: 14px;
}

.footer-col a, .footer-col p {
  display: block;
  font-size: 13px;
  margin-bottom: 8px;
  opacity: 0.75;
  transition: opacity 0.2s;
}

.footer-col a:hover { opacity: 1; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  font-size: 12px;
  text-align: center;
  opacity: 0.6;
}

/* Responsive */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .hero-desc { margin: 0 auto 32px; }
  .hero-actions { justify-content: center; }
  .hero-visual { order: -1; }
  .phone-mock { width: 240px; }
  .phone-screen { height: 420px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .nav a:not(.nav-cta) { display: none; }
}

@media (max-width: 500px) {
  .features-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
}