/* ============================================
   Luxmind Luxmind — Company Website
   Design: Stripe/Linear-inspired, dark theme
   Palette: Deep blue-purple / Gold / Red
   ============================================ */

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

:root {
  /* Brand colors */
  --bg-primary: #0a0a0f;
  --bg-secondary: #111118;
  --bg-card: #16161f;
  --bg-card-hover: #1c1c28;
  --border: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.12);

  --text-primary: #f1f1f3;
  --text-secondary: #a1a1aa;
  --text-tertiary: #71717a;

  --accent-blue: #6366f1;    /* indigo */
  --accent-purple: #8b5cf6;  /* violet */
  --accent-gold: #f59e0b;    /* amber */
  --accent-red: #ef4444;     /* red */

  --gradient-brand: linear-gradient(135deg, #6366f1, #8b5cf6, #a855f7);
  --gradient-gold: linear-gradient(135deg, #f59e0b, #ef4444);
  --gradient-subtle: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(139, 92, 246, 0.08));

  /* Typography */
  --font-sans: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', monospace;

  /* Spacing */
  --max-width: 1200px;
  --nav-height: 64px;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

::selection {
  background: rgba(99, 102, 241, 0.4);
  color: #fff;
}

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

img {
  max-width: 100%;
  display: block;
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.nav.scrolled {
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--border);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
}

.logo-icon {
  font-size: 20px;
  line-height: 1;
}

.logo-text {
  font-size: 18px;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.logo-sub {
  font-size: 12px;
  color: var(--text-tertiary);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: 4px;
}

.nav-links a {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s, background 0.2s;
}

.nav-links a:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: transform 0.3s, opacity 0.3s;
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 32px 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.3;
  animation: float 20s ease-in-out infinite;
}

.orb-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.4), transparent);
  top: -200px;
  right: -100px;
  animation-delay: 0s;
}

.orb-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.25), transparent);
  bottom: -100px;
  left: -50px;
  animation-delay: -7s;
}

.orb-3 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(239, 68, 68, 0.2), transparent);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation-delay: -14s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(30px, -30px) scale(1.05); }
  50% { transform: translate(-20px, 20px) scale(0.95); }
  75% { transform: translate(10px, 10px) scale(1.02); }
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at 50% 50%, black 30%, transparent 70%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 100px;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.2);
  font-size: 13px;
  font-weight: 500;
  color: #a5b4fc;
  margin-bottom: 32px;
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #818cf8;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero-title {
  font-size: clamp(40px, 7vw, 72px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  color: var(--text-primary);
}

.gradient-text {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-sub {
  font-size: 18px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 40px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all 0.2s var(--ease-out);
  border: none;
}

.btn-primary {
  background: var(--accent-blue);
  color: #fff;
}

.btn-primary:hover {
  background: #5558e6;
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(99, 102, 241, 0.3);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--border-hover);
}

.btn-lg {
  padding: 16px 32px;
  font-size: 16px;
}

/* --- Scroll Indicator --- */
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-tertiary);
  font-size: 12px;
  animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* --- Sections --- */
section {
  padding: 120px 32px;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 80px;
}

.section-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-blue);
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: clamp(28px, 5vw, 44px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-header p {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* --- Products --- */
.products {
  background: var(--bg-secondary);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all 0.3s var(--ease-out);
  position: relative;
  overflow: hidden;
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  opacity: 0;
  transition: opacity 0.3s;
}

.product-card[data-status="live"]::before { background: var(--gradient-brand); }
.product-card[data-status="paused"]::before { background: var(--gradient-gold); }
.product-card[data-status="upcoming"]::before { background: linear-gradient(135deg, #06b6d4, #3b82f6); }
.product-card[data-status="seed"]::before { background: linear-gradient(135deg, #10b981, #6366f1); }

.product-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.product-card:hover::before {
  opacity: 1;
}

.product-icon {
  margin-bottom: 20px;
}

.product-tags {
  margin-bottom: 12px;
}

.tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.tag-live { background: rgba(99, 102, 241, 0.15); color: #a5b4fc; }
.tag-paused { background: rgba(245, 158, 11, 0.15); color: #fbbf24; }
.tag-upcoming { background: rgba(6, 182, 212, 0.15); color: #67e8f9; }
.tag-seed { background: rgba(16, 185, 129, 0.15); color: #6ee7b7; }

.product-card h3 {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}

.product-subtitle {
  font-size: 14px;
  color: var(--text-tertiary);
  margin-bottom: 16px;
}

.product-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 20px;
  flex: 1;
}

.product-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.product-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: all 0.2s;
}

.product-link:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--border-hover);
  color: var(--text-primary);
}

.product-link--wechat { cursor: default; }
.product-link--wechat:hover { color: #07c160; border-color: rgba(7, 193, 96, 0.3); background: rgba(7, 193, 96, 0.06); }

.product-link--coming {
  color: var(--text-tertiary);
  font-style: italic;
}

/* --- Product Flow --- */
.product-flow {
  max-width: var(--max-width);
  margin: 80px auto 0;
  padding: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}

.flow-line {
  position: absolute;
  top: 50%;
  left: 5%;
  right: 5%;
  height: 1px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple), var(--accent-gold), #10b981);
  opacity: 0.3;
  display: none;
}

.flow-items {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.flow-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  flex: 1;
  min-width: 120px;
}

.flow-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  margin-bottom: 4px;
}

.flow-dot--info { background: var(--accent-blue); box-shadow: 0 0 12px rgba(99, 102, 241, 0.5); }
.flow-dot--taste { background: var(--accent-gold); box-shadow: 0 0 12px rgba(245, 158, 11, 0.5); }
.flow-dot--method { background: #06b6d4; box-shadow: 0 0 12px rgba(6, 182, 212, 0.5); }
.flow-dot--tool { background: #10b981; box-shadow: 0 0 12px rgba(16, 185, 129, 0.5); }

.flow-label {
  font-size: 12px;
  color: var(--text-tertiary);
  font-weight: 500;
}

.flow-product {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.flow-arrow {
  font-size: 20px;
  color: var(--text-tertiary);
  padding-top: 12px;
  display: none;
}

/* --- About --- */
.about {
  max-width: var(--max-width);
  margin: 0 auto;
  padding-left: 32px;
  padding-right: 32px;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-text h2 {
  font-size: clamp(28px, 5vw, 44px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.about-text p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: all 0.3s var(--ease-out);
}

.stat-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.stat-number {
  display: block;
  font-size: 40px;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 14px;
  color: var(--text-tertiary);
  font-weight: 500;
}

/* --- Team --- */
.team {
  background: var(--bg-secondary);
}

.team-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  max-width: var(--max-width);
  margin: 0 auto;
  flex-wrap: wrap;
}

.team-card {
  text-align: center;
  padding: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all 0.3s var(--ease-out);
}

.team-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.team-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  font-weight: 700;
  margin: 0 auto 16px;
}

.team-avatar--lucian {
  background: var(--gradient-brand);
  color: #fff;
}

.team-card h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 4px;
}

.team-role {
  font-size: 14px;
  color: var(--accent-blue);
  font-weight: 600;
  margin-bottom: 12px;
}

.team-bio {
  font-size: 14px;
  color: var(--text-secondary);
  max-width: 260px;
  line-height: 1.6;
}

.team-connector {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.connector-line {
  width: 2px;
  height: 40px;
  background: var(--gradient-brand);
  opacity: 0.4;
}

.connector-text {
  font-size: 12px;
  color: var(--text-tertiary);
  writing-mode: vertical-lr;
}

.team-agents {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  justify-content: center;
}

.agent-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: all 0.3s var(--ease-out);
  min-width: 120px;
}

.agent-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.agent-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
}

.agent-avatar--thomas { background: linear-gradient(135deg, #f59e0b, #ef4444); }
.agent-avatar--stephen { background: linear-gradient(135deg, #06b6d4, #3b82f6); }
.agent-avatar--lucia { background: linear-gradient(135deg, #ec4899, #8b5cf6); }

.agent-card span:first-of-type {
  font-size: 15px;
  font-weight: 600;
}

.agent-role {
  font-size: 12px;
  color: var(--text-tertiary);
}

/* --- Philosophy --- */
.philosophy {
  max-width: var(--max-width);
  margin: 0 auto;
  padding-left: 32px;
  padding-right: 32px;
}

.philosophy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.philosophy-card {
  padding: 36px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all 0.3s var(--ease-out);
}

.philosophy-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

.philosophy-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--gradient-subtle);
  color: var(--accent-blue);
  margin-bottom: 20px;
}

.philosophy-card h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 12px;
}

.philosophy-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
}

/* --- CTA --- */
.cta {
  position: relative;
  text-align: center;
  overflow: hidden;
  background: var(--bg-secondary);
}

.cta-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.orb-4 {
  position: absolute;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.25), transparent);
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  filter: blur(80px);
}

.cta-content {
  position: relative;
  z-index: 1;
}

.cta-content h2 {
  font-size: clamp(28px, 5vw, 44px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.cta-content p {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

/* --- Footer --- */
.footer {
  border-top: 1px solid var(--border);
  padding: 64px 32px 32px;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 64px;
  flex-wrap: wrap;
}

.footer-logo {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  display: block;
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-tertiary);
}

.footer-links {
  display: flex;
  gap: 64px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col-title {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 4px;
}

.footer-col a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: color 0.2s;
}

.footer-col a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  max-width: var(--max-width);
  margin: 48px auto 0;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-tertiary);
  flex-wrap: wrap;
  gap: 12px;
}

/* --- Reveal Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* --- Responsive --- */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(20px);
    padding: 16px;
    border-bottom: 1px solid var(--border);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle.open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  .nav-toggle.open span:nth-child(2) {
    opacity: 0;
  }
  .nav-toggle.open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .team-grid {
    flex-direction: column;
    gap: 32px;
  }

  .team-connector {
    flex-direction: row;
  }

  .connector-line {
    width: 40px;
    height: 2px;
  }

  .connector-text {
    writing-mode: horizontal-tb;
  }

  .footer-inner {
    flex-direction: column;
    gap: 40px;
  }

  .footer-links {
    gap: 40px;
  }
}

@media (max-width: 480px) {
  section {
    padding: 80px 20px;
  }

  .hero {
    padding: 100px 20px 60px;
  }

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

  .about-stats {
    grid-template-columns: 1fr 1fr;
  }

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

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}