/* ========================================
   MintLabel Homepage - Pure CSS
   ======================================== */

/* === 1. CSS Variables === */
:root {
  /* Colors - Zinc (darkened for better readability) */
  --zinc-50: #fafafa;
  --zinc-100: #f4f4f5;
  --zinc-200: #e4e4e7;
  --zinc-300: #d4d4d8;
  --zinc-400: #8b8b95;
  --zinc-500: #5c5c66;
  --zinc-600: #52525b;
  --zinc-700: #3f3f46;
  --zinc-800: #27272a;
  --zinc-900: #18181b;
  --zinc-950: #09090b;

  /* Colors - Mint */
  --mint-50: #f0fdfa;
  --mint-100: #ccfbf1;
  --mint-200: #99f6e4;
  --mint-300: #5eead4;
  --mint-400: #2dd4bf;
  --mint-500: #14b8a6;
  --mint-600: #0d9488;

  /* Colors - Emerald */
  --emerald-50: #ecfdf5;
  --emerald-100: #d1fae5;
  --emerald-400: #34d399;
  --emerald-500: #10b981;
  --emerald-600: #059669;
  --emerald-900: #064e3b;

  /* Fonts */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-serif: 'Noto Serif KR', Georgia, serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Spacing */
  --header-height: 64px;
  --footer-height: 48px;
}

/* === 2. Reset & Base === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  height: 100%;
}

body {
  font-family: var(--font-sans);
  background: white;
  color: var(--zinc-900);
  height: 100%;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Hide scrollbar */
.no-scrollbar::-webkit-scrollbar { display: none; }
.no-scrollbar { -ms-overflow-style: none; scrollbar-width: none; }

/* Skip Navigation Link */
.skip-link {
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--zinc-900);
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: 0 0 8px 8px;
  z-index: 9999;
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 0;
  outline: none;
}

/* === 3. Typography === */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

p {
  line-height: 1.6;
}

/* === 4. Icons === */
.icon {
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
}
.icon-xs { width: 0.75rem; height: 0.75rem; }
.icon-sm { width: 1rem; height: 1rem; }

/* === 5. Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 500;
  border-radius: 9999px;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-primary {
  background: var(--zinc-900);
  color: white;
  box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
}
.btn-primary:hover {
  background: var(--zinc-800);
  transform: translateY(-2px);
  box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1);
}

.btn-secondary {
  background: white;
  color: var(--zinc-900);
  border: 1px solid var(--zinc-200);
}
.btn-secondary:hover {
  border-color: var(--zinc-900);
  background: var(--zinc-50);
}

.btn-sm { padding: 0.625rem 1.25rem; font-size: 0.875rem; }
.btn-lg { padding: 1rem 2.5rem; font-size: 1.125rem; font-weight: 700; }
.btn-full { width: 100%; }

/* === 6. Header === */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(255,255,255,0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 50;
  border-bottom: 1px solid rgba(244,244,245,0.5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
}

.header-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.logo-img {
  height: 32px;
  width: auto;
}

@media (min-width: 1024px) {
  .header { padding: 0 3rem; }
}

/* === 7. Navigation Dots === */
.nav-dots {
  position: fixed;
  right: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 50;
  display: none;
  flex-direction: column;
  gap: 1rem;
}

@media (min-width: 1024px) {
  .nav-dots { display: flex; }
}

.nav-dot {
  position: relative;
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 50%;
  border: 1px solid var(--zinc-900);
  background: transparent;
  cursor: pointer;
  transition: all 0.3s ease;
}
.nav-dot:hover { background: var(--zinc-200); }
.nav-dot.active {
  background: var(--zinc-900);
  transform: scale(1.25);
}

.nav-label {
  position: absolute;
  right: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
  padding: 0.25rem 0.5rem;
  background: var(--zinc-900);
  color: white;
  font-size: 0.625rem;
  border-radius: 0.25rem;
  opacity: 0;
  pointer-events: none;
  white-space: nowrap;
  transition: opacity 0.3s ease;
}
.nav-dot:hover .nav-label { opacity: 1; }

/* === 8. Main Layout === */
.main-content {
  height: 100%;
  padding-top: var(--header-height);
  padding-bottom: var(--footer-height);
  display: grid;
  grid-template-columns: 1fr;
  overflow: hidden;
}

@media (min-width: 1024px) {
  .main-content {
    grid-template-columns: 45% 55%;
    gap: 3rem;
  }
}

/* === 9. Left Pane (Phone Mockup) === */
.left-pane {
  display: none;
}

@media (min-width: 1024px) {
  .left-pane {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    justify-content: center;
    padding-right: 4rem;
    position: sticky;
    top: var(--header-height);
    height: calc(100vh - var(--header-height) - var(--footer-height));
    background: white;
  }
}

.phone-frame {
  position: relative;
  width: 336px;
  max-height: 700px;
  height: calc(100vh - 10rem);
  background: var(--zinc-950);
  border-radius: 44px;
  box-shadow: 0 25px 50px -12px rgba(0,0,0,0.25);
  overflow: hidden;
  border: 5px solid var(--zinc-900);
}

.phone-reflection {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top right, rgba(255,255,255,0.05), transparent, transparent);
  z-index: 20;
  pointer-events: none;
  border-radius: 38px;
}

.phone-notch {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 82px;
  height: 24px;
  background: black;
  border-radius: 9999px;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 8px;
}

.phone-camera {
  width: 6px;
  height: 6px;
  background: #1a1a1a;
  border-radius: 50%;
}

.phone-screen {
  width: 100%;
  height: 100%;
  background: white;
  overflow: hidden;
  border-radius: 38px;
  border: 4px solid var(--zinc-950);
  position: relative;
}

.phone-home-indicator {
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 4px;
  background: black;
  border-radius: 9999px;
  z-index: 50;
}

.phone-caption {
  margin-top: 2rem;
  font-family: var(--font-serif);
  font-size: 0.625rem;
  color: var(--zinc-300);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  opacity: 0.5;
}

/* === 10. Phone Screen Contents === */
.screen-content {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  position: absolute;
  inset: 0;
  opacity: 1;
  transition: opacity 0.3s ease;
}
.screen-content.hidden {
  opacity: 0;
  pointer-events: none;
}

.screen-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 48px 24px 16px;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(244,244,245,0.5);
  position: sticky;
  top: 0;
  z-index: 30;
  border-radius: 38px 38px 0 0;
}

.screen-logo {
  font-family: var(--font-sans);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: black;
}

.screen-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--zinc-50);
  border: 1px solid rgba(228,228,231,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
  color: black;
}

.screen-body {
  flex: 1;
  padding: 24px;
  overflow-y: auto;
}
.screen-body::-webkit-scrollbar { display: none; }
.screen-body.blurred {
  filter: blur(2px);
  opacity: 0.4;
}

/* Product Image */
.product-image {
  width: 100%;
  aspect-ratio: 4/5;
  background: var(--zinc-50);
  border-radius: 32px;
  overflow: hidden;
  margin-bottom: 24px;
  position: relative;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,0.03);
}
.product-image.small {
  aspect-ratio: 3/4;
  margin-bottom: 16px;
}
.product-image.faded { opacity: 0.4; }
.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.share-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(12px);
  border-radius: 50%;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  z-index: 20;
}
.share-btn svg {
  width: 16px;
  height: 16px;
  stroke: black;
}

.product-badge {
  position: absolute;
  bottom: 20px;
  left: 20px;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(12px);
  padding: 8px 16px;
  border-radius: 9999px;
  font-size: 11px;
  font-weight: 600;
  color: black;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  z-index: 20;
}

.product-info {
  padding: 0 8px;
  margin-bottom: 16px;
}
.product-info h3 {
  font-family: var(--font-sans);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: black;
  margin-bottom: 6px;
}
.product-info p {
  font-size: 13px;
  color: var(--zinc-500);
  font-weight: 500;
}

/* Skeleton */
.skeleton-lines {
  padding: 0 8px;
}
.skeleton-lines.faded { opacity: 0.3; }
.skeleton-line {
  height: 12px;
  background: var(--zinc-100);
  border-radius: 9999px;
  margin-bottom: 16px;
}
.skeleton-line.w-80 { width: 83%; }
.skeleton-line.w-75 { width: 75%; }
.skeleton-line.w-60 { width: 66%; }

/* Compliance Badge */
.compliance-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(236,253,245,0.8);
  border: 1px solid rgba(209,250,229,0.5);
  border-radius: 9999px;
  padding: 6px 12px;
  width: fit-content;
  margin: 0 auto 24px;
  backdrop-filter: blur(8px);
}
.compliance-badge span {
  font-size: 11px;
  font-weight: 600;
  color: var(--emerald-900);
  letter-spacing: 0.02em;
}
.compliance-badge .badge-sub {
  font-weight: 500;
  color: rgba(6,78,59,0.7);
  font-size: 10px;
}

.pulse-dot {
  width: 6px;
  height: 6px;
  background: var(--emerald-500);
  border-radius: 50%;
  animation: pulse 2s infinite;
  box-shadow: 0 0 8px rgba(16,185,129,0.4);
}
.pulse-dot.green {
  background: var(--emerald-500);
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.1); }
}

/* JSON Overlay */
.json-overlay {
  position: absolute;
  top: 128px;
  left: 20px;
  right: 20px;
  background: rgba(0,0,0,0.95);
  backdrop-filter: blur(12px);
  border-radius: 28px;
  padding: 24px;
  border: 1px solid rgba(255,255,255,0.1);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--emerald-400);
  z-index: 20;
  box-shadow: 0 25px 50px -12px rgba(0,0,0,0.25);
}

.json-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  color: var(--zinc-500);
}
.json-header span {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
}

.json-dot {
  width: 8px;
  height: 8px;
  background: var(--zinc-700);
  border-radius: 50%;
}

.json-code {
  opacity: 0.9;
  line-height: 1.6;
  white-space: pre-wrap;
  color: var(--zinc-400);
}

.json-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,0.1);
  color: white;
}

.ai-ready {
  display: flex;
  align-items: center;
  gap: 8px;
}
.ai-ready span {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--emerald-500);
}

.version {
  font-size: 10px;
  color: var(--zinc-500);
}

/* Carbon Card */
.carbon-card {
  background: black;
  border-radius: 28px;
  padding: 24px;
  margin-bottom: 24px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1);
}

.carbon-icon-bg {
  position: absolute;
  top: 0;
  right: 0;
  padding: 24px;
  opacity: 0.2;
}
.carbon-icon-bg svg {
  width: 80px;
  height: 80px;
  stroke: white;
  transform: rotate(12deg);
}

.carbon-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
}
.carbon-header span {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--zinc-400);
}

.carbon-icon-wrap {
  padding: 6px;
  background: rgba(255,255,255,0.1);
  border-radius: 50%;
  backdrop-filter: blur(8px);
}
.carbon-icon {
  width: 14px;
  height: 14px;
  stroke: var(--emerald-400);
}

.carbon-value {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 24px;
}
.carbon-value .number {
  font-size: 48px;
  font-weight: 500;
  color: white;
  letter-spacing: -0.04em;
}
.carbon-value .unit {
  font-size: 13px;
  font-weight: 500;
  color: var(--zinc-400);
}

.carbon-bar {
  width: 100%;
  height: 6px;
  background: rgba(255,255,255,0.1);
  border-radius: 9999px;
  overflow: hidden;
}
.carbon-bar-fill {
  height: 100%;
  background: linear-gradient(to right, var(--emerald-500), var(--emerald-400));
  box-shadow: 0 0 12px rgba(52,211,153,0.4);
  border-radius: 9999px;
  transition: width 1.2s cubic-bezier(0.33, 1, 0.68, 1);
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.stat-card {
  background: var(--zinc-50);
  padding: 20px;
  border-radius: 24px;
  border: 1px solid var(--zinc-100);
}
.stat-card .stat-label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--zinc-400);
  margin-bottom: 8px;
}
.stat-card .stat-value {
  display: block;
  font-size: 24px;
  font-weight: 600;
  color: black;
  letter-spacing: -0.02em;
}

/* Supply Map */
.supply-map {
  position: relative;
  height: 192px;
  background: rgba(239,246,255,0.5);
  border-radius: 24px;
  margin-bottom: 16px;
  overflow: hidden;
  border: 1px solid rgba(191,219,254,0.5);
  background-image: radial-gradient(#3b82f6 1px, transparent 1px);
  background-size: 12px 12px;
}

.map-dot {
  position: absolute;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  z-index: 10;
  box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
}
.map-dot.black {
  top: 50%;
  left: 25%;
  background: black;
  animation: pulse 2s infinite;
}
.map-dot.green {
  top: 33%;
  right: 25%;
  background: var(--emerald-500);
}

.map-line {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.map-badge {
  position: absolute;
  bottom: 12px;
  left: 12px;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(8px);
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 10px;
  font-weight: 600;
  color: var(--zinc-600);
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.supply-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.supply-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  background: var(--zinc-50);
  border-radius: 20px;
  border: 1px solid transparent;
  transition: border-color 0.2s ease;
}
.supply-item:hover { border-color: var(--zinc-200); }

.supply-icon {
  width: 40px;
  height: 40px;
  background: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
  border: 1px solid var(--zinc-100);
}
.supply-icon svg {
  width: 20px;
  height: 20px;
  stroke: black;
}

.supply-info strong {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: black;
  letter-spacing: -0.02em;
}
.supply-info span {
  font-size: 11px;
  color: var(--zinc-400);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Social Proof Screen */
.testimonial-card-phone {
  background: white;
  padding: 28px;
  border-radius: 28px;
  box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1);
  border: 1px solid var(--zinc-100);
  margin-bottom: 24px;
}

.stars {
  display: flex;
  gap: 4px;
  margin-bottom: 20px;
}
.stars svg {
  width: 16px;
  height: 16px;
  color: #facc15;
}

.testimonial-card-phone p {
  font-family: var(--font-sans);
  font-size: 17px;
  font-weight: 500;
  color: black;
  line-height: 1.5;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
}

.author-avatar {
  width: 40px;
  height: 40px;
  background: var(--zinc-100);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  color: var(--zinc-900);
  border: 1px solid var(--zinc-200);
}

.testimonial-author strong {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: black;
}
.testimonial-author span {
  display: block;
  font-size: 11px;
  color: var(--zinc-400);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.impact-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(236,253,245,0.5);
  padding: 24px;
  border-radius: 28px;
  border: 1px solid rgba(209,250,229,0.5);
  backdrop-filter: blur(8px);
}

.impact-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--emerald-600);
  margin-bottom: 4px;
}
.impact-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--emerald-800);
}
.impact-value {
  font-size: 36px;
  font-weight: 300;
  color: var(--emerald-900);
  letter-spacing: -0.04em;
}

/* QR Screen */
.qr-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  text-align: center;
  padding: 32px;
  background: white;
}

.qr-code {
  background: white;
  padding: 32px;
  border-radius: 32px;
  box-shadow: 0 25px 50px -12px rgba(0,0,0,0.1);
  border: 1px solid var(--zinc-100);
  margin-bottom: 40px;
}
.qr-code svg {
  width: 144px;
  height: 144px;
  stroke: black;
  stroke-width: 1.5;
}

.qr-screen h3 {
  font-family: var(--font-sans);
  font-size: 24px;
  font-weight: 700;
  color: black;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}
.qr-screen p {
  font-size: 15px;
  color: var(--zinc-400);
  font-weight: 500;
  margin-bottom: 48px;
}

.qr-btn {
  width: 100%;
  background: black;
  color: white;
  padding: 16px;
  border-radius: 9999px;
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
  transition: all 0.2s ease;
}
.qr-btn:hover { background: var(--zinc-900); }

/* Success Screen */
.success-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  background: var(--emerald-500);
  color: white;
  text-align: center;
  padding: 32px;
}

.success-icon {
  width: 96px;
  height: 96px;
  background: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 32px;
  box-shadow: 0 25px 50px -12px rgba(0,0,0,0.25);
}
.success-icon svg {
  width: 48px;
  height: 48px;
  stroke: var(--emerald-500);
}

.success-screen h2 {
  font-family: var(--font-sans);
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}
.success-screen p {
  font-size: 18px;
  font-weight: 500;
  opacity: 0.8;
}

/* === 11. Right Pane === */
.right-pane {
  overflow-y: auto;
  scroll-behavior: smooth;
  padding: 0;
}
.right-pane::-webkit-scrollbar { display: none; }

@media (min-width: 1024px) {
  .right-pane {
    scroll-snap-type: y mandatory;
    scroll-padding-top: 0;
  }
}

/* === 12. Sections === */
.section {
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 4rem 1.5rem;
  width: 100%;
  max-width: 32rem;
  margin: 0 auto;
  opacity: 0;
  transform: translateY(2rem);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.section.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (min-width: 768px) {
  .section { padding: 4rem 3rem; }
}

@media (min-width: 1024px) {
  .section {
    min-height: calc(100vh - var(--header-height));
    scroll-snap-align: center;
    scroll-snap-stop: always;
    padding: 3rem 4rem 3rem 1rem;
    margin: 0;
    max-width: 42rem;
  }
}

/* Section Titles */
.section-title {
  font-size: 1.875rem;
  color: var(--zinc-900);
  margin-bottom: 1.5rem;
  word-break: keep-all;
  line-height: 1.4;
}

@media (min-width: 640px) {
  .section-title { font-size: 2.25rem; }
}

@media (min-width: 1024px) {
  .section-title { font-size: 3rem; }
}

.section-desc {
  font-size: 0.875rem;
  color: var(--zinc-700);
  font-weight: 300;
  margin-bottom: 2rem;
  line-height: 1.8;
}

@media (min-width: 640px) {
  .section-desc { font-size: 1rem; }
}

.section-note {
  font-size: 0.875rem;
  color: var(--zinc-700);
  font-weight: 300;
  line-height: 1.8;
}
.section-note strong {
  color: var(--zinc-900);
  font-weight: 500;
}

/* === 13. Hero Section === */
.hero-title {
  font-size: 1.875rem;
  color: var(--zinc-900);
  margin-bottom: 2rem;
  word-break: keep-all;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

@media (min-width: 640px) {
  .hero-title { font-size: 2.25rem; }
}

@media (min-width: 768px) {
  .hero-title { font-size: 3rem; }
}

@media (min-width: 1024px) {
  .hero-title { font-size: 4.5rem; }
}

.hero-desc {
  font-size: 1rem;
  color: var(--zinc-700);
  font-weight: 300;
  margin-bottom: 1.5rem;
  max-width: 32rem;
  line-height: 1.8;
}

@media (min-width: 640px) {
  .hero-desc { font-size: 1.125rem; }
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 3rem;
}

.hero-features {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  font-size: 0.875rem;
  color: var(--zinc-400);
  font-weight: 500;
  border-top: 1px solid var(--zinc-100);
  padding-top: 2rem;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.feature-item svg {
  color: var(--zinc-900);
}

/* Mobile Phone Preview */
.mobile-phone-preview {
  display: flex;
  justify-content: center;
  margin-bottom: 2rem;
}

.mobile-phone-frame {
  width: 216px;
  height: 432px;
  background: var(--zinc-900);
  border-radius: 25px;
  border: 4px solid var(--zinc-900);
  box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1);
  overflow: hidden;
}

.mobile-phone-screen {
  width: 100%;
  height: 100%;
  background: white;
  border-radius: 20px;
  border: 1px solid var(--zinc-100);
}

.mobile-screen-content {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 1rem;
}

.mobile-qr-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--zinc-50);
  border-radius: 12px;
}

.mobile-qr-icon svg {
  width: 28px;
  height: 28px;
  stroke: var(--zinc-700);
}

.mobile-screen-label {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--zinc-500);
  text-align: center;
  letter-spacing: 0.02em;
}

@media (min-width: 1024px) {
  .mobile-phone-preview { display: none; }
}

/* === 14. Notice Card (Dark) === */
.notice-card {
  padding: 2rem;
  border-radius: 1rem;
  margin-bottom: 2rem;
  position: relative;
  overflow: hidden;
}

.notice-card.dark {
  background: var(--zinc-950);
  color: white;
  border: 1px solid var(--zinc-800);
  box-shadow: 0 25px 50px -12px rgba(0,0,0,0.25);
}

.notice-glow {
  position: absolute;
  top: 0;
  right: 0;
  width: 128px;
  height: 128px;
  background: rgba(255,255,255,0.05);
  border-radius: 50%;
  filter: blur(48px);
  margin-right: -64px;
  margin-top: -64px;
  pointer-events: none;
}

.notice-content {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  position: relative;
  z-index: 10;
}

.notice-icon {
  background: rgba(255,255,255,0.1);
  padding: 0.875rem;
  border-radius: 0.75rem;
  border: 1px solid rgba(255,255,255,0.1);
  flex-shrink: 0;
  transition: background 0.2s ease;
}
.notice-card:hover .notice-icon { background: rgba(255,255,255,0.2); }

.notice-icon svg {
  width: 24px;
  height: 24px;
  stroke: white;
}

.notice-content h3 {
  font-family: var(--font-sans);
  font-size: 1.125rem;
  font-weight: 700;
  color: white;
  margin-bottom: 0.75rem;
  letter-spacing: 0.02em;
}

.notice-content p {
  color: var(--zinc-400);
  font-weight: 300;
  font-size: 0.875rem;
  line-height: 1.7;
}

@media (min-width: 640px) {
  .notice-content p { font-size: 1rem; }
}

/* === 15. Comparison Grid === */
.comparison-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-bottom: 2rem;
}

@media (min-width: 768px) {
  .comparison-grid { grid-template-columns: 1fr 1fr; }
}

.comparison-card {
  padding: 1.5rem;
  border-radius: 1rem;
  position: relative;
}

.comparison-card.legacy {
  background: white;
  border: 1px solid var(--zinc-100);
  color: var(--zinc-400);
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.comparison-card.modern {
  background: var(--zinc-50);
  border: 1px solid var(--zinc-200);
  color: var(--zinc-900);
  box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
}
.comparison-card.modern:hover { border-color: var(--zinc-300); }

.comparison-badge {
  position: absolute;
  top: 0;
  right: 0;
  background: var(--zinc-900);
  color: white;
  font-size: 0.5625rem;
  padding: 0.375rem 0.75rem;
  font-weight: 700;
  border-radius: 0 1rem 0 0.75rem;
}

.comparison-label {
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 1rem;
  display: block;
  color: var(--zinc-300);
}
.comparison-label.dark { color: var(--zinc-900); }

.comparison-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.comparison-card li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 300;
}

.comparison-card.legacy li .dot {
  width: 6px;
  height: 6px;
  background: var(--zinc-200);
  border-radius: 50%;
}

.comparison-card.modern li svg {
  color: var(--emerald-600);
}

/* Quote */
.quote {
  border-left: 2px solid var(--zinc-900);
  padding-left: 1.5rem;
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-style: italic;
  color: var(--zinc-600);
  line-height: 1.6;
}

@media (min-width: 640px) {
  .quote { font-size: 1.25rem; }
}

/* === 16. Feature List === */
.feature-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.feature-row {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  padding: 1.25rem;
  border-radius: 1rem;
  border: 1px solid transparent;
  transition: all 0.2s ease;
}
.feature-row:hover {
  background: var(--zinc-50);
  border-color: var(--zinc-100);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--zinc-100);
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
  transition: all 0.3s ease;
}
.feature-row:hover .feature-icon {
  background: var(--zinc-900);
  transform: scale(1.1);
}

.feature-icon svg {
  width: 20px;
  height: 20px;
  stroke: var(--zinc-500);
  transition: stroke 0.3s ease;
}
.feature-row:hover .feature-icon svg { stroke: white; }

.feature-row h4 {
  font-family: var(--font-sans);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--zinc-900);
  margin-bottom: 0.25rem;
}

.feature-row p {
  font-size: 0.875rem;
  color: var(--zinc-500);
  font-weight: 300;
}

/* === 17. Carbon Calculator === */
.carbon-calculator {
  background: var(--zinc-50);
  border-radius: 0.75rem;
  padding: 2rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  border: 1px solid var(--zinc-200);
}

.calc-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  font-size: 0.75rem;
  color: var(--zinc-400);
  letter-spacing: 0.05em;
}
.calc-header .highlight {
  color: var(--zinc-900);
  font-weight: 700;
}

.calc-rows {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.calc-row {
  display: flex;
  justify-content: space-between;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--zinc-200);
}
.calc-row span { color: var(--zinc-500); }
.calc-row .value {
  font-weight: 700;
  color: var(--zinc-900);
}

.calc-row.total {
  border-bottom: none;
  padding-top: 0.5rem;
}
.calc-row.total span { color: var(--zinc-900); }

/* === 18. Check List === */
.check-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

@media (min-width: 640px) {
  .check-list { gap: 1.5rem; }
}

.check-list li {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.875rem;
  color: var(--zinc-800);
}

@media (min-width: 640px) {
  .check-list li { font-size: 1rem; }
}

.check-icon {
  background: var(--zinc-100);
  padding: 0.25rem;
  border-radius: 50%;
  flex-shrink: 0;
}
.check-icon svg { color: var(--zinc-900); }

/* === 19. Timeline === */
.timeline {
  position: relative;
  border-left: 1px solid var(--zinc-200);
  margin-left: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.timeline-item {
  position: relative;
  padding-left: 2rem;
}

.timeline-dot {
  position: absolute;
  left: -5px;
  top: 8px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--zinc-300);
  box-shadow: 0 0 0 4px white;
}

.timeline-item.active .timeline-dot { background: var(--zinc-900); }

.timeline-content .step-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--zinc-400);
  letter-spacing: 0.15em;
  margin-bottom: 0.25rem;
}
.timeline-content .step-label.highlight { color: var(--zinc-900); }

.timeline-content h3 {
  font-family: var(--font-sans);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--zinc-900);
  margin-bottom: 0.5rem;
}

.timeline-content p {
  color: var(--zinc-500);
  font-weight: 300;
  line-height: 1.7;
}

/* === 20. Testimonial Slider === */
.testimonial-slider {
  position: relative;
  height: 280px;
  margin-bottom: 3rem;
}

.testimonial-card {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--zinc-50);
  padding: 2.5rem;
  border-left: 2px solid var(--zinc-900);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  opacity: 0;
  transform: translateX(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
  pointer-events: none;
}

.testimonial-card.active {
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
}

.testimonial-card p {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-style: italic;
  color: var(--zinc-700);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.testimonial-card .testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.testimonial-card .author-avatar {
  width: 40px;
  height: 40px;
  background: var(--zinc-200);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--zinc-500);
}

.testimonial-card .testimonial-author strong {
  display: block;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--zinc-900);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.testimonial-card .testimonial-author span {
  display: block;
  font-size: 0.75rem;
  color: var(--zinc-500);
}

.testimonial-dots {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 3rem;
}

.testimonial-dot {
  height: 8px;
  border-radius: 9999px;
  background: var(--zinc-300);
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  width: 8px;
}
.testimonial-dot:hover { background: var(--zinc-400); }
.testimonial-dot.active {
  background: var(--zinc-900);
  width: 32px;
}

/* Stats Row */
.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  text-align: center;
  border-top: 1px solid var(--zinc-100);
  padding-top: 2rem;
}

@media (min-width: 640px) {
  .stats-row { gap: 2rem; }
}

.stat-number {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--zinc-900);
  margin-bottom: 0.5rem;
}

@media (min-width: 640px) {
  .stat-number { font-size: 1.875rem; }
}

.stat-unit {
  font-size: 1rem;
  color: var(--zinc-400);
}

@media (min-width: 640px) {
  .stat-unit { font-size: 1.125rem; }
}

.stat-desc {
  display: block;
  font-size: 0.625rem;
  color: var(--zinc-400);
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

@media (min-width: 640px) {
  .stat-desc { font-size: 0.75rem; }
}

/* === 21. Pricing Section === */
.section-pricing {
  padding-top: 8rem;
}

@media (min-width: 1024px) {
  .section-pricing {
    padding-top: 6rem;
    padding-bottom: 3rem;
  }
}

.pricing-card {
  background: white;
  padding: 2rem;
  border-radius: 1rem;
  box-shadow: 0 20px 25px -5px rgba(228,228,231,0.5);
  position: relative;
  overflow: hidden;
  max-width: 32rem;
  margin: 2rem auto 0;
  border: 1px solid var(--zinc-200);
}

@media (min-width: 640px) {
  .pricing-card { padding: 3rem; }
}

.pricing-accent {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: var(--zinc-900);
}

.pricing-header {
  text-align: center;
  margin-bottom: 2.5rem;
  margin-top: 0.5rem;
}

.pricing-label {
  display: block;
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--zinc-400);
  margin-bottom: 1.25rem;
}

.pricing-title {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 500;
  color: var(--zinc-900);
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

@media (min-width: 640px) {
  .pricing-title { font-size: 3rem; }
}

.pricing-desc {
  color: var(--zinc-500);
  font-size: 0.875rem;
  font-weight: 300;
  line-height: 1.7;
  max-width: 24rem;
  margin: 0 auto;
  word-break: keep-all;
}

@media (min-width: 640px) {
  .pricing-desc { font-size: 1rem; }
}

.pricing-features {
  max-width: 24rem;
  margin: 0 auto 2.5rem;
  border-top: 1px solid var(--zinc-100);
}

.pricing-feature {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--zinc-100);
  transition: all 0.2s ease;
}
.pricing-feature:hover span { color: var(--zinc-900); }

.pricing-feature svg {
  color: var(--zinc-300);
  flex-shrink: 0;
  transition: color 0.2s ease;
}
.pricing-feature:hover svg { color: var(--emerald-600); }

.pricing-feature span {
  font-size: 0.875rem;
  color: var(--zinc-600);
  font-weight: 500;
  transition: color 0.2s ease;
}

.pricing-progress {
  max-width: 24rem;
  margin: 0 auto 2.5rem;
}

.progress-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.625rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--zinc-400);
  margin-bottom: 0.75rem;
}
.progress-count {
  color: var(--zinc-900);
  font-weight: 700;
}

.progress-bar {
  width: 100%;
  height: 4px;
  background: var(--zinc-100);
  border-radius: 9999px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: var(--zinc-900);
  border-radius: 9999px;
  transition: width 1.5s cubic-bezier(0.33, 1, 0.68, 1);
}

.pricing-card .btn {
  max-width: 24rem;
  margin: 0 auto;
  display: block;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.75rem;
}

.pricing-watermark {
  position: absolute;
  bottom: -48px;
  right: -48px;
  font-family: var(--font-serif);
  font-size: 12rem;
  line-height: 1;
  color: var(--zinc-900);
  opacity: 0.03;
  pointer-events: none;
  user-select: none;
}

/* === 22. FAQ Section === */
.faq-list {
  display: flex;
  flex-direction: column;
}

.faq-item {
  border-bottom: 1px solid var(--zinc-100);
}
.faq-item:last-child { border-bottom: none; }

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 1.25rem 0;
  text-align: left;
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--zinc-800);
  background: none;
  border: none;
  cursor: pointer;
  transition: color 0.2s ease;
}
.faq-question:hover { color: var(--zinc-500); }

.faq-chevron {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}
.faq-item.open .faq-chevron { transform: rotate(180deg); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, opacity 0.3s ease;
  opacity: 0;
}
.faq-item.open .faq-answer {
  max-height: 200px;
  opacity: 1;
}

.faq-answer p {
  padding-bottom: 1.5rem;
  color: var(--zinc-500);
  font-weight: 300;
  line-height: 1.7;
}

/* === 23. Final CTA Section === */
.section-cta {
  text-align: center;
}

.cta-title {
  font-size: 2.5rem;
  color: var(--zinc-900);
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

@media (min-width: 640px) {
  .cta-title { font-size: 3rem; }
}

@media (min-width: 1024px) {
  .cta-title { font-size: 3.75rem; }
}

.cta-desc {
  font-size: 0.875rem;
  color: var(--zinc-500);
  font-weight: 300;
  margin-bottom: 2rem;
  line-height: 1.8;
}

@media (min-width: 640px) {
  .cta-desc {
    font-size: 1rem;
    margin-bottom: 3rem;
  }
}

.cta-buttons {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 2rem;
}

@media (min-width: 640px) {
  .cta-buttons { flex-direction: row; }
}

.cta-note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--zinc-400);
  font-weight: 300;
}

/* === 24. Footer === */
.footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--footer-height);
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 50;
  border-top: 1px solid rgba(244,244,245,0.5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  font-size: 0.625rem;
  color: var(--zinc-400);
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

@media (min-width: 640px) {
  .footer { font-size: 0.75rem; }
}

@media (min-width: 1024px) {
  .footer { padding: 0 3rem; }
}

.footer-left { font-weight: 500; }

.footer-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

@media (min-width: 640px) {
  .footer-right { gap: 2rem; }
}

.footer-links {
  display: flex;
  gap: 1rem;
}

@media (min-width: 640px) {
  .footer-links { gap: 1.5rem; }
}

.footer-links a {
  color: var(--zinc-400);
  text-decoration: none;
  transition: color 0.2s ease;
}
.footer-links a:hover { color: var(--zinc-600); }

.footer-links + .footer-links {
  border-left: 1px solid var(--zinc-200);
  padding-left: 2rem;
}

.footer-select {
  position: relative;
  margin-left: 1rem;
}

.footer-select select {
  background: transparent;
  border: none;
  color: var(--zinc-400);
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  cursor: pointer;
  appearance: none;
  padding-right: 1rem;
  text-align: right;
  outline: none;
}

@media (min-width: 640px) {
  .footer-select select { font-size: 0.75rem; }
}

.footer-select select:hover { color: var(--zinc-600); }

.footer-select svg {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  opacity: 0.5;
}

/* === 25. Modals === */
.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}

.modal.open {
  opacity: 1;
  visibility: visible;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.modal.modal-dark .modal-backdrop { background: rgba(0,0,0,0.8); }

.modal-content {
  position: relative;
  background: white;
  width: 100%;
  max-width: 28rem;
  border-radius: 1.5rem;
  box-shadow: 0 25px 50px -12px rgba(0,0,0,0.25);
  padding: 2rem;
  margin: 1rem;
  transform: scale(0.95) translateY(20px);
  transition: transform 0.2s ease;
}

.modal.open .modal-content {
  transform: scale(1) translateY(0);
}

.modal-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  padding: 0.5rem;
  background: none;
  border: none;
  color: var(--zinc-400);
  cursor: pointer;
  border-radius: 50%;
  transition: all 0.2s ease;
}
.modal-close:hover {
  color: var(--zinc-600);
  background: var(--zinc-100);
}
.modal-close.light {
  color: rgba(255,255,255,0.7);
}
.modal-close.light:hover {
  color: white;
  background: transparent;
}

.modal-close svg {
  width: 20px;
  height: 20px;
}

/* Modal Video */
.modal-video {
  background: transparent;
  max-width: 56rem;
  padding: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.modal-video .modal-close {
  position: absolute;
  top: -48px;
  right: 0;
}

.video-placeholder {
  width: 100%;
  aspect-ratio: 16/9;
  background: linear-gradient(to bottom right, var(--zinc-800), var(--zinc-900));
  border-radius: 1rem;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 1.5rem;
  border: 1px solid var(--zinc-800);
  box-shadow: 0 25px 50px -12px rgba(0,0,0,0.25);
}

.play-button {
  width: 80px;
  height: 80px;
  background: var(--mint-500);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  box-shadow: 0 0 40px rgba(20,184,166,0.2);
  transition: transform 0.3s ease;
  cursor: pointer;
}
.play-button:hover { transform: scale(1.1); }

.play-button svg {
  width: 32px;
  height: 32px;
  color: white;
  margin-left: 4px;
}

.video-placeholder h3 {
  font-family: var(--font-sans);
  color: white;
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.video-placeholder p.mono {
  font-family: var(--font-mono);
  color: var(--zinc-400);
  font-size: 0.875rem;
}

.video-cta {
  margin-top: 2rem;
  text-align: center;
}

.video-cta p {
  color: rgba(255,255,255,0.6);
  margin-bottom: 0.75rem;
}

.link-btn {
  background: none;
  border: none;
  color: white;
  font-size: 1.125rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: color 0.2s ease;
}
.link-btn:hover { color: var(--mint-300); }
.link-btn svg {
  transition: transform 0.2s ease;
}
.link-btn:hover svg { transform: translateX(4px); }

/* Modal Form */
.modal-form h2 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--zinc-900);
  margin-bottom: 0.5rem;
}

.modal-desc {
  font-size: 0.875rem;
  color: var(--zinc-500);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--zinc-700);
  margin-bottom: 0.375rem;
}

.form-group input,
.form-group select {
  width: 100%;
  border: 1px solid var(--zinc-200);
  border-radius: 0.75rem;
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  outline: none;
  transition: all 0.2s ease;
}

.form-group input:focus,
.form-group select:focus {
  border-color: var(--mint-500);
  box-shadow: 0 0 0 3px rgba(20,184,166,0.1);
}

.form-group input.error { border-color: #fca5a5; }

.select-wrap {
  position: relative;
}

.select-wrap select {
  appearance: none;
  background: white;
  cursor: pointer;
}

.select-wrap svg {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  color: var(--zinc-500);
}

.form-note {
  font-size: 0.75rem;
  color: var(--zinc-400);
  text-align: center;
  margin-top: 0.75rem;
}

/* Modal Success */
.modal-success {
  padding: 3rem 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.modal-success.hidden { display: none; }
.modal-form.hidden { display: none; }

.success-icon-modal {
  width: 80px;
  height: 80px;
  background: var(--mint-50);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.success-icon-modal svg {
  width: 40px;
  height: 40px;
  stroke: var(--mint-500);
}

.modal-success h3 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--zinc-900);
  margin-bottom: 0.75rem;
}

.modal-success p {
  color: var(--zinc-500);
  margin-bottom: 2rem;
  line-height: 1.6;
}

/* === 26. Utility Classes === */
.hidden { display: none !important; }
.hide-mobile { display: none; }
.show-mobile { display: block; }

@media (min-width: 640px) {
  .hide-mobile { display: block; }
  .show-mobile { display: none; }
}

.hide-tablet { display: none; }

@media (min-width: 768px) {
  .hide-tablet { display: flex; }
}