/* ========================================
   Lilemei Website Styles
   ======================================== */

@import url('https://fonts.googleapis.com/css2?family=Funnel+Sans:wght@400;500;600;700&family=Geist:wght@400;500;600;700;800&family=Geist+Mono:wght@400;500;600;700&family=Inter:wght@400;500;600;700&display=swap');

/* ========================================
   CSS Variables
   ======================================== */
:root {
  --bg: #eef2f5;
  --paper: #f8fafb;
  --paper-strong: #ffffff;
  --paper-soft: #e5edf1;
  --ink: #162126;
  --muted: #60707a;
  --line: rgba(22, 33, 38, 0.1);
  --carbon: #202c33;
  --carbon-soft: #354550;
  --frost: #dfe9ee;
  --ice: #8cc8d3;
  --mint: #89c9bb;
  --teal-deep: #4a7c6f;
  --lift: 0 18px 42px rgba(39, 54, 64, 0.08);
  --lift-strong: 0 24px 52px rgba(39, 54, 64, 0.12);
  --radius-sm: 16px;
  --radius-md: 22px;
  --radius-lg: 28px;
}

/* ========================================
   Reset & Base
   ======================================== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  color: var(--ink);
  font-family: 'Inter', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  line-height: 1.6;
  background: var(--bg);
}

h1, h2, h3 {
  font-family: 'Geist', 'PingFang SC', sans-serif;
  font-weight: 700;
  line-height: 1.2;
}

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

/* ========================================
   Background Decorations
   ======================================== */
.bg-glow {
  position: fixed;
  z-index: -2;
  border-radius: 50%;
  filter: blur(110px);
  pointer-events: none;
}

.bg-glow-left {
  top: -140px;
  left: -120px;
  width: 320px;
  height: 320px;
  background: rgba(137, 201, 187, 0.18);
}

.bg-glow-right {
  top: 40px;
  right: -100px;
  width: 280px;
  height: 280px;
  background: rgba(140, 200, 211, 0.18);
}

.bg-glow-center {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: rgba(137, 201, 187, 0.08);
  opacity: 0.5;
}

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.4) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.4) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  opacity: 0.5;
}

.bg-noise {
  position: fixed;
  inset: 0;
  z-index: -1;
  opacity: 0.02;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  pointer-events: none;
}

/* ========================================
   Layout
   ======================================== */
.page-shell {
  width: min(1200px, calc(100% - 36px));
  margin: 0 auto;
  padding: 24px 0 56px;
}

section {
  margin-bottom: 54px;
}

/* ========================================
   Header
   ======================================== */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 30px;
  padding: 14px 18px;
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: var(--radius-md);
  background: rgba(248, 250, 251, 0.78);
  backdrop-filter: blur(14px);
  box-shadow: 0 10px 24px rgba(39, 54, 64, 0.04);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}

.brand img {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  box-shadow: 0 12px 24px rgba(137, 201, 187, 0.22);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.brand-copy strong {
  font-family: 'Geist', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
}

.brand-copy span {
  color: var(--muted);
  font-family: 'Funnel Sans', sans-serif;
  font-size: 0.74rem;
  letter-spacing: 0.08em;
}

.site-nav {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 18px;
}

.site-nav a {
  color: var(--muted);
  font-family: 'Funnel Sans', sans-serif;
  font-size: 0.95rem;
  transition: color 0.2s ease;
}

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

/* ========================================
   Animations
   ======================================== */
.hero,
.journey-section,
.modules-section,
.audience-section,
.proof-section,
.final-section {
  animation: fade-up 0.68s ease both;
}

.journey-section {
  animation-delay: 0.06s;
}

.modules-section {
  animation-delay: 0.12s;
}

.audience-section {
  animation-delay: 0.18s;
}

.proof-section {
  animation-delay: 0.24s;
}

.final-section {
  animation-delay: 0.3s;
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.96fr) minmax(360px, 1.04fr);
  gap: 26px;
  align-items: stretch;
  margin-bottom: 54px;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 38px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--lift);
  background:
    radial-gradient(circle at top left, rgba(137, 201, 187, 0.14), transparent 34%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(244, 247, 249, 0.98));
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(137, 201, 187, 0.14);
  color: var(--carbon-soft);
  font-family: 'Funnel Sans', sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 14ch;
  margin-top: 18px;
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--ink);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 28px 0 20px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  text-decoration: none;
  font-family: 'Geist', sans-serif;
  font-weight: 700;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  color: #f7fbfc;
  background: linear-gradient(135deg, var(--carbon), var(--carbon-soft));
  box-shadow: var(--lift-strong);
}

.button-secondary {
  color: var(--ink);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.86);
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-tags span {
  padding: 9px 12px;
  border-radius: 999px;
  background: rgba(53, 69, 80, 0.06);
  color: var(--carbon);
  font-family: 'Geist Mono', monospace;
  font-size: 0.88rem;
  font-weight: 600;
}

/* Hero Stage (App Preview) */
.hero-stage {
  position: relative;
  min-height: 680px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--lift);
  background:
    linear-gradient(135deg, #e4edf1 0%, #f7fafb 34%, #e7f0f3 100%);
}

.hero-stage::before {
  position: absolute;
  inset: 28px;
  content: '';
  border-radius: var(--radius-md);
  background:
    radial-gradient(circle at top right, rgba(140, 200, 211, 0.22), transparent 24%),
    radial-gradient(circle at bottom left, rgba(137, 201, 187, 0.18), transparent 28%),
    rgba(255, 255, 255, 0.4);
  pointer-events: none;
}

.status-card {
  position: absolute;
  z-index: 2;
  top: 22px;
  right: 22px;
  max-width: 228px;
  padding: 15px 16px;
  border-radius: var(--radius-sm);
  box-shadow: var(--lift);
  background: rgba(248, 250, 251, 0.9);
}

.status-card span {
  display: block;
  color: var(--teal-deep);
  font-family: 'Geist Mono', monospace;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.status-card strong {
  display: block;
  margin-top: 8px;
  color: var(--ink);
  font-family: 'Inter', sans-serif;
  font-size: 0.96rem;
  line-height: 1.4;
}

.device-stage {
  position: relative;
  z-index: 1;
  min-height: 632px;
}

.device {
  position: absolute;
}

.device-main {
  top: 108px;
  left: 42px;
  width: 338px;
  transform: rotate(-2deg);
}

.device-side {
  right: 26px;
  bottom: 88px;
  width: 216px;
  transform: rotate(5deg);
}

.device-shell {
  padding: 14px;
  border-radius: 34px;
  background: linear-gradient(180deg, #27343b, #141e23);
  box-shadow: 0 24px 52px rgba(39, 54, 64, 0.18);
}

.compact-shell {
  border-radius: 28px;
}

.device-bar {
  width: 110px;
  height: 18px;
  margin: 0 auto 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.24);
}

.device-screen {
  border-radius: var(--radius-md);
  background:
    radial-gradient(circle at top right, rgba(140, 200, 211, 0.14), transparent 28%),
    linear-gradient(180deg, #fbfdfe 0%, #edf3f5 100%);
}

.device-main .device-screen {
  padding: 18px;
}

.ui-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
  color: var(--muted);
  font-family: 'Geist Mono', monospace;
  font-size: 0.76rem;
}

.ui-panel {
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 12px 24px rgba(39, 54, 64, 0.06);
}

.ui-panel-primary {
  padding: 18px;
  margin-bottom: 14px;
}

.ui-label {
  display: inline-flex;
  align-items: center;
  padding: 4px 8px;
  border-radius: 999px;
  background: rgba(137, 201, 187, 0.14);
  color: var(--carbon-soft);
  font-family: 'Funnel Sans', sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.ui-panel-primary h2 {
  margin-top: 10px;
  color: var(--ink);
  font-size: 1.4rem;
  line-height: 1.2;
}

.ui-panel-primary p:last-child {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.6;
}

.ui-route-list {
  display: grid;
  gap: 10px;
}

.ui-route-list article {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.7);
}

.route-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex: none;
}

.route-dot-teal { background: var(--mint); }
.route-dot-gold { background: var(--ice); }
.route-dot-slate { background: var(--carbon-soft); }

.ui-route-list strong {
  display: block;
  color: var(--ink);
  font-family: 'Geist', sans-serif;
  font-size: 0.95rem;
}

.ui-route-list small {
  display: block;
  color: var(--muted);
  font-size: 0.8rem;
  margin-top: 2px;
}

.compact-screen {
  padding: 14px;
}

.mini-panel {
  padding: 14px;
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.8);
}

.mini-panel + .mini-panel {
  margin-top: 10px;
}

.mini-panel small {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-family: 'Funnel Sans', sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.mini-panel strong {
  color: var(--ink);
  font-family: 'Inter', sans-serif;
  font-size: 0.94rem;
}

.mini-panel.active {
  background: linear-gradient(135deg, rgba(140, 200, 211, 0.18), rgba(255, 255, 255, 0.92));
  border: 1px solid rgba(140, 200, 211, 0.18);
}

/* ========================================
   Section Common
   ======================================== */
.section-heading {
  margin-bottom: 22px;
}

.section-heading h2 {
  max-width: 16ch;
  margin-top: 14px;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  line-height: 1.2;
  color: var(--ink);
}

.split-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
}

.section-caption {
  max-width: 24ch;
  color: var(--muted);
  font-family: 'Funnel Sans', sans-serif;
  font-size: 0.95rem;
  line-height: 1.5;
}

/* ========================================
   Journey Section
   ======================================== */
.journey-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.journey-card {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--lift);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(248, 250, 251, 0.96));
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.journey-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--lift-strong);
}

.journey-card.active {
  background:
    radial-gradient(circle at top right, rgba(140, 200, 211, 0.18), transparent 34%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(239, 246, 248, 0.98));
}

.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.index-pill {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(137, 201, 187, 0.18);
  color: var(--carbon-soft);
  font-family: 'Geist Mono', monospace;
  font-weight: 700;
  font-size: 0.85rem;
}

.journey-card h3 {
  font-size: 1.38rem;
  color: var(--ink);
}

.journey-card p {
  margin: 10px 0 0;
  color: var(--muted);
  font-family: 'Funnel Sans', sans-serif;
  line-height: 1.6;
}

/* ========================================
   Modules Section
   ======================================== */
.modules-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature-card {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--lift);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(248, 250, 251, 0.96));
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.feature-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--lift-strong);
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(137, 201, 187, 0.14);
  color: var(--carbon-soft);
  font-family: 'Funnel Sans', sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.feature-card h3 {
  margin-top: 14px;
  font-size: 1.38rem;
  line-height: 1.3;
  color: var(--ink);
}

.feature-card p {
  margin: 10px 0 0;
  color: var(--muted);
  font-family: 'Funnel Sans', sans-serif;
  line-height: 1.6;
}

.feature-card-highlight {
  background:
    radial-gradient(circle at top right, rgba(140, 200, 211, 0.18), transparent 34%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(239, 246, 248, 0.98));
}

.feature-card-dark {
  background:
    radial-gradient(circle at top right, rgba(140, 200, 211, 0.18), transparent 34%),
    linear-gradient(180deg, #1f2b36 0%, #2d3c49 100%);
}

.feature-card-dark h3,
.feature-card-dark p {
  color: #f2f7f8;
}

.feature-card-dark .chip-invert {
  background: rgba(255, 255, 255, 0.15);
  color: #f1f6f8;
}

/* ========================================
   Audience Section
   ======================================== */
.audience-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.audience-card {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--lift);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(248, 250, 251, 0.96));
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.audience-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--lift-strong);
}

.audience-card h3 {
  font-size: 1.28rem;
  color: var(--ink);
  margin-bottom: 8px;
}

.audience-card p {
  color: var(--muted);
  font-family: 'Funnel Sans', sans-serif;
  line-height: 1.6;
}

/* ========================================
   Proof Section
   ======================================== */
.proof-grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr 1fr;
  gap: 18px;
}

.proof-card {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--lift);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(248, 250, 251, 0.96));
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.proof-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--lift-strong);
}

.proof-card-main {
  background:
    radial-gradient(circle at top right, rgba(140, 200, 211, 0.22), transparent 30%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(239, 246, 248, 0.98));
}

.proof-card small {
  color: var(--teal-deep);
  font-family: 'Geist Mono', monospace;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.proof-card strong {
  color: var(--ink);
  font-family: 'Geist', sans-serif;
  font-size: 1.1rem;
  line-height: 1.4;
}

.proof-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 4px;
}

.proof-metrics span {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(53, 69, 80, 0.06);
  color: var(--carbon);
  font-family: 'Geist Mono', monospace;
  font-size: 0.78rem;
  font-weight: 500;
}

.proof-list {
  display: grid;
  gap: 10px;
  margin-top: 8px;
}

.proof-list article {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.72);
}

.compact-list article {
  align-items: center;
}

.proof-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex: none;
  margin-top: 4px;
}

.proof-dot-gold { background: var(--ice); }
.proof-dot-teal { background: var(--mint); }
.proof-dot-slate { background: var(--carbon-soft); }

.proof-list p {
  color: var(--muted);
  line-height: 1.5;
  margin: 0;
  font-size: 0.9rem;
}

/* ========================================
   Final Section
   ======================================== */
.final-section {
  padding: 48px 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--lift);
  background:
    radial-gradient(circle at top right, rgba(140, 200, 211, 0.18), transparent 24%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(245, 249, 250, 0.96));
  text-align: center;
}

.final-section h2 {
  margin-top: 16px;
  max-width: 16ch;
  font-size: clamp(1.8rem, 3.6vw, 2.8rem);
  line-height: 1.15;
  color: var(--ink);
  margin-left: auto;
  margin-right: auto;
}

.final-text {
  max-width: 28ch;
  margin: 14px auto 0;
  color: var(--muted);
  font-family: 'Funnel Sans', sans-serif;
  font-size: 1rem;
  line-height: 1.6;
}

.final-actions {
  margin-top: 24px;
  justify-content: center;
}

/* ========================================
   Footer
   ======================================== */
.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px 20px;
  padding: 24px 0 0;
  color: var(--muted);
  font-family: 'Funnel Sans', sans-serif;
  font-size: 0.9rem;
}

.site-footer p {
  margin: 0;
}

/* ========================================
   Responsive - Tablet
   ======================================== */
@media (max-width: 1120px) {
  .hero,
  .journey-grid,
  .modules-grid,
  .audience-grid,
  .proof-grid {
    grid-template-columns: 1fr;
  }

  .device-main,
  .device-side {
    transform: none;
  }
}

/* ========================================
   Responsive - Mobile
   ======================================== */
@media (max-width: 760px) {
  .page-shell {
    width: min(100% - 24px, 1220px);
    padding-top: 14px;
  }

  .site-header {
    align-items: flex-start;
    flex-direction: column;
    border-radius: var(--radius-md);
    padding: 18px;
  }

  .site-nav {
    gap: 12px 16px;
  }

  .hero-copy,
  .hero-stage,
  .journey-card,
  .feature-card,
  .audience-card,
  .proof-card,
  .final-section {
    padding: 20px;
  }

  .hero h1 {
    max-width: none;
  }

  .hero-actions {
    gap: 10px 12px;
  }

  .button {
    width: 100%;
  }

  .split-heading {
    display: block;
  }

  .section-heading h2 {
    max-width: none;
  }

  .hero-stage {
    min-height: 800px;
  }

  .status-card {
    top: 18px;
    left: 18px;
    right: 18px;
    max-width: none;
  }

  .device-main {
    top: 118px;
    left: 18px;
    right: 18px;
    width: auto;
  }

  .device-side {
    right: 18px;
    bottom: 96px;
    width: 46%;
  }

  .journey-card,
  .feature-card,
  .audience-card,
  .proof-card {
    padding: 20px;
  }
}