/* ============================================================
   LifeSim — Landing Page Styles
   Award-winning, modern, dark gradient design system
   ============================================================ */

:root {
  --bg: #07070d;
  --bg-2: #0c0c16;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-2: rgba(255, 255, 255, 0.07);
  --border: rgba(255, 255, 255, 0.09);
  --border-2: rgba(255, 255, 255, 0.16);
  --text: #f4f4fb;
  --text-dim: #a7a7c2;
  --text-faint: #6c6c88;
  --primary: #7c5cff;
  --primary-2: #9d7fff;
  --accent: #00e0c6;
  --accent-2: #18d4ff;
  --warn: #ffb454;
  --danger: #ff5c7c;
  --success: #2ee6a6;
  --grad: linear-gradient(135deg, #7c5cff 0%, #00e0c6 100%);
  --grad-2: linear-gradient(135deg, #9d7fff 0%, #18d4ff 100%);
  --grad-soft: linear-gradient(135deg, rgba(124, 92, 255, 0.18), rgba(0, 224, 198, 0.12));
  --radius: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --shadow: 0 20px 60px -20px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 40px -8px rgba(124, 92, 255, 0.5);
  --maxw: 1200px;
  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --font-display: 'Space Grotesk', 'Inter', sans-serif;
}

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

html { scroll-behavior: smooth; }

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

/* ---------- Animated Background ---------- */
.bg-gradient {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(ellipse 80% 50% at 20% 0%, rgba(124, 92, 255, 0.25), transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 10%, rgba(0, 224, 198, 0.18), transparent 60%),
    radial-gradient(ellipse 70% 60% at 50% 100%, rgba(24, 212, 255, 0.12), transparent 60%),
    var(--bg);
}
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 100% 70% at 50% 0%, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 100% 70% at 50% 0%, #000 30%, transparent 80%);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font);
  font-weight: 600;
  font-size: 14px;
  padding: 11px 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  color: var(--text);
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 8px 24px -8px rgba(124, 92, 255, 0.7);
}
.btn-primary:hover { box-shadow: 0 12px 32px -8px rgba(124, 92, 255, 0.9); }
.btn-ghost {
  background: var(--surface);
  border-color: var(--border-2);
  backdrop-filter: blur(10px);
}
.btn-ghost:hover { background: var(--surface-2); border-color: var(--border-2); }
.btn-lg { padding: 15px 30px; font-size: 16px; }

/* ---------- Navbar ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background .3s ease, backdrop-filter .3s ease, border-color .3s ease;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(7, 7, 13, 0.75);
  backdrop-filter: blur(20px);
  border-bottom-color: var(--border);
}
.nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
}
.brand-mark {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: var(--grad);
  display: grid; place-items: center;
  font-weight: 800; font-size: 14px;
  color: #fff;
  box-shadow: var(--shadow-glow);
}
.brand-text .accent { color: var(--accent); }
.nav-links {
  display: flex;
  gap: 28px;
}
.nav-links a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color .2s ease;
}
.nav-links a:hover { color: var(--text); }
.nav-cta { display: flex; gap: 10px; }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none; border: none; cursor: pointer;
}
.nav-toggle span {
  width: 22px; height: 2px;
  background: var(--text);
  border-radius: 2px;
}

/* ---------- Hero ---------- */
.hero {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 140px 24px 80px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
  min-height: 92vh;
}
.hero-content { max-width: 640px; }
.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border-2);
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 24px;
  backdrop-filter: blur(10px);
}
.pulse {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(0, 224, 198, 0.6);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(0, 224, 198, 0.6); }
  70% { box-shadow: 0 0 0 12px rgba(0, 224, 198, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 224, 198, 0); }
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(40px, 6vw, 72px);
  line-height: 1.04;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}
.grad-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-sub {
  font-size: 18px;
  color: var(--text-dim);
  margin-bottom: 36px;
  max-width: 560px;
}
.hero-cta {
  display: flex;
  gap: 14px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}
.hero-stats {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}
.hero-stats strong {
  display: block;
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 700;
}
.hero-stats span { color: var(--text-faint); font-size: 13px; }

/* Hero visual */
.hero-visual {
  position: relative;
  height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Browser-framed product screenshot */
.browser-frame {
  position: relative;
  width: 108%;
  max-width: 620px;
  border-radius: 14px;
  overflow: hidden;
  background: #0d0d16;
  border: 1px solid var(--border-2);
  box-shadow: 0 40px 90px -30px rgba(0,0,0,0.8), 0 0 60px -20px rgba(124,92,255,0.45);
  transform: perspective(1600px) rotateY(-7deg) rotateX(3deg);
  transition: transform .5s ease;
  z-index: 2;
}
.hero-visual:hover .browser-frame { transform: perspective(1600px) rotateY(-3deg) rotateX(1deg) translateY(-4px); }
.bf-bar {
  display: flex; align-items: center; gap: 7px;
  padding: 9px 12px; background: #15151f; border-bottom: 1px solid var(--border);
}
.bf-dot { width: 10px; height: 10px; border-radius: 50%; }
.bf-dot.r { background: #ff5f57; } .bf-dot.y { background: #febc2e; } .bf-dot.g { background: #28c840; }
.bf-url {
  margin-left: 10px; flex: 1; background: rgba(0,0,0,0.4); border: 1px solid var(--border);
  border-radius: 7px; padding: 4px 12px; font-size: 12px; color: var(--text-faint);
}
.browser-frame img { display: block; width: 100%; height: auto; }

/* Trust strip */
.trust-strip {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 14px 28px;
  max-width: var(--maxw); margin: 8px auto 0; padding: 0 24px 16px;
  color: var(--text-faint); font-size: 14px; font-weight: 500;
}
.trust-strip span { display: inline-flex; align-items: center; gap: 6px; }

/* P2E flow */
.flow { display: flex; align-items: stretch; gap: 14px; flex-wrap: wrap; justify-content: center; }
.flow-step {
  flex: 1; min-width: 220px; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 28px; text-align: center;
}
.flow-ic {
  width: 60px; height: 60px; margin: 0 auto 16px; border-radius: 16px;
  background: var(--grad-soft); display: grid; place-items: center; font-size: 28px;
}
.flow-step h3 { font-family: var(--font-display); font-size: 18px; margin-bottom: 8px; }
.flow-step p { color: var(--text-dim); font-size: 14px; }
.flow-arrow { display: flex; align-items: center; color: var(--accent); font-size: 28px; font-weight: 700; }
@media (max-width: 860px) { .flow-arrow { transform: rotate(90deg); } }
.orb {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 320px; height: 320px;
  border-radius: 50%;
  background: var(--grad);
  filter: blur(40px);
  opacity: 0.5;
  animation: orbFloat 8s ease-in-out infinite;
}
@keyframes orbFloat {
  0%, 100% { transform: translate(-50%, -50%) scale(1); }
  50% { transform: translate(-50%, -55%) scale(1.1); }
}
.float-card {
  position: absolute;
  background: rgba(20, 20, 35, 0.85);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-2);
  border-radius: var(--radius);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow);
  animation: cardFloat 6s ease-in-out infinite;
}
.float-card b { display: block; font-size: 14px; }
.float-card small { color: var(--accent); font-size: 12px; font-weight: 600; }
.fc-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--grad-soft);
  display: grid; place-items: center;
  font-size: 20px;
}
.card-1 { top: 10%; left: 0; animation-delay: 0s; }
.card-2 { top: 25%; right: 5%; animation-delay: 1.5s; }
.card-3 { bottom: 22%; left: 8%; animation-delay: 3s; }
.card-4 { bottom: 8%; right: 0; animation-delay: 4.5s; }
@keyframes cardFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}

/* ---------- Marquee ---------- */
.marquee {
  overflow: hidden;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-2);
  padding: 18px 0;
  white-space: nowrap;
}
.marquee-track {
  display: inline-flex;
  gap: 40px;
  animation: marquee 28s linear infinite;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 22px;
  letter-spacing: 0.1em;
  color: var(--text-faint);
}
.marquee-track span:nth-child(odd) { color: var(--primary-2); }
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---------- Sections ---------- */
.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 100px 24px;
}
.section-alt {
  max-width: none;
  background: linear-gradient(180deg, transparent, rgba(255,255,255,0.015), transparent);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.section-alt > * { max-width: var(--maxw); margin-left: auto; margin-right: auto; }
.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px;
}
.eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}
.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(30px, 4vw, 46px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.section-head p { color: var(--text-dim); font-size: 17px; }

/* ---------- Cards / Grid ---------- */
.grid {
  display: grid;
  gap: 20px;
}
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  backdrop-filter: blur(10px);
  transition: transform .3s ease, border-color .3s ease, background .3s ease;
}
.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-2);
  background: var(--surface-2);
}
.f-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: var(--grad-soft);
  display: grid; place-items: center;
  font-size: 26px;
  margin-bottom: 18px;
}
.feature-card h3 {
  font-family: var(--font-display);
  font-size: 20px;
  margin-bottom: 10px;
}
.feature-card p { color: var(--text-dim); font-size: 15px; }

/* ---------- Steps ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.step {
  position: relative;
  padding: 28px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
}
.step-num {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 16px;
}
.step h3 { font-family: var(--font-display); font-size: 19px; margin-bottom: 8px; }
.step p { color: var(--text-dim); font-size: 14px; }

/* ---------- Split / Economy ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.split h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.5vw, 40px);
  margin: 10px 0 16px;
  letter-spacing: -0.02em;
}
.split p { color: var(--text-dim); margin-bottom: 24px; }
.check-list { list-style: none; margin-bottom: 28px; }
.check-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  color: var(--text-dim);
}
.chk {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--grad-soft);
  color: var(--accent);
  display: grid; place-items: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}

.token-panel {
  background: linear-gradient(160deg, rgba(124, 92, 255, 0.12), rgba(0, 224, 198, 0.06));
  border: 1px solid var(--border-2);
  border-radius: var(--radius-xl);
  padding: 28px;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow);
}
.token-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
}
.token-logo {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: var(--grad);
  display: grid; place-items: center;
  font-weight: 800;
  color: #fff;
}
.token-head h4 { font-family: var(--font-display); font-size: 18px; }
.token-head small { color: var(--text-faint); font-size: 13px; }
.token-price { margin-left: auto; text-align: right; }
.token-price strong { display: block; font-family: var(--font-display); font-size: 22px; }
.token-price .up { color: var(--success); font-size: 13px; font-weight: 600; }
.sparkline { margin-bottom: 24px; }
.sparkline svg { width: 100%; height: 80px; display: block; }
.token-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.token-grid > div {
  background: rgba(0, 0, 0, 0.25);
  border-radius: 12px;
  padding: 14px;
}
.token-grid small { display: block; color: var(--text-faint); font-size: 12px; margin-bottom: 4px; }
.token-grid b { font-family: var(--font-display); font-size: 17px; }

/* ---------- Timeline ---------- */
.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.tl-item {
  position: relative;
  padding: 26px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
}
.tl-dot {
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--surface-2);
  border: 2px solid var(--border-2);
  margin-bottom: 18px;
}
.tl-dot.done { background: var(--accent); border-color: var(--accent); box-shadow: 0 0 16px rgba(0,224,198,0.6); }
.tl-dot.now { background: var(--primary); border-color: var(--primary); box-shadow: 0 0 16px rgba(124,92,255,0.6); animation: pulse2 1.6s infinite; }
@keyframes pulse2 { 50% { transform: scale(1.3); } }
.tl-q { font-family: var(--font-display); color: var(--accent); font-weight: 600; font-size: 13px; margin-bottom: 6px; }
.tl-item h4 { font-family: var(--font-display); font-size: 18px; margin-bottom: 8px; }
.tl-item p { color: var(--text-dim); font-size: 14px; }

/* ---------- FAQ ---------- */
.faq { max-width: 760px; margin: 0 auto; }
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}
.faq-item summary {
  padding: 20px 24px;
  font-weight: 600;
  font-family: var(--font-display);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 22px;
  color: var(--accent);
  transition: transform .2s;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p {
  padding: 0 24px 20px;
  color: var(--text-dim);
}

/* ---------- CTA band ---------- */
.cta-band {
  text-align: center;
  padding: 100px 24px;
  max-width: 700px;
  margin: 0 auto;
}
.cta-band h2 {
  font-family: var(--font-display);
  font-size: clamp(30px, 4vw, 46px);
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}
.cta-band p { color: var(--text-dim); margin-bottom: 30px; font-size: 17px; }

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  background: var(--bg-2);
  padding: 60px 24px 30px;
}
.foot-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 40px;
  align-items: start;
}
.foot-brand { display: flex; gap: 12px; align-items: center; }
.foot-brand strong { font-family: var(--font-display); font-size: 18px; }
.foot-brand p { color: var(--text-faint); font-size: 14px; }
.foot-cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.foot-cols h5 {
  font-family: var(--font-display);
  font-size: 14px;
  margin-bottom: 14px;
  color: var(--text);
}
.foot-cols a {
  display: block;
  color: var(--text-faint);
  text-decoration: none;
  font-size: 14px;
  padding: 5px 0;
  transition: color .2s;
}
.foot-cols a:hover { color: var(--accent); }
.foot-bottom {
  max-width: var(--maxw);
  margin: 40px auto 0;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  color: var(--text-faint);
  font-size: 13px;
  text-align: center;
}

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.in {
  opacity: 1;
  transform: none;
}

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; padding-top: 120px; }
  .hero-visual { height: 360px; order: -1; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .timeline { grid-template-columns: repeat(2, 1fr); }
  .split { grid-template-columns: 1fr; }
  .foot-inner { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .nav-links { display: none; position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; background: rgba(7,7,13,0.97); padding: 20px; border-bottom: 1px solid var(--border); }
  .nav-links.open { display: flex; }
  .nav-cta .btn-ghost { display: none; }
  .nav-toggle { display: flex; }
  .grid-3, .steps, .timeline { grid-template-columns: 1fr; }
  .hero-stats { gap: 24px; }
  .foot-cols { grid-template-columns: 1fr; }
}