/* ============================================================
   AetherSearch — Apple-inspired glass theme
   Monochrome palette, single accent, restrained motion.
   ============================================================ */

:root {
  /* Surface */
  --bg:           #000000;
  --bg-elev:      #0a0a0c;

  /* Glass tokens */
  --glass-bg:     rgba(255, 255, 255, 0.04);
  --glass-bg-2:   rgba(255, 255, 255, 0.06);
  --glass-bd:     rgba(255, 255, 255, 0.10);
  --glass-bd-2:   rgba(255, 255, 255, 0.16);
  --glass-rim:    rgba(255, 255, 255, 0.12);

  /* Text */
  --text:         #F5F5F7;       /* Apple near-white */
  --text-2:       #C7C7CC;
  --text-3:       #86868B;       /* Apple gray */
  --text-4:       #6E6E73;

  /* Single accent */
  --accent:       #0A84FF;       /* iOS dark mode system blue */
  --accent-2:     #5E9CFF;
  --accent-soft:  rgba(10, 132, 255, 0.14);

  /* Effects */
  --blur:         saturate(180%) blur(28px);
  --blur-strong:  saturate(180%) blur(40px);

  --radius:       14px;
  --radius-lg:    22px;
  --radius-xl:    28px;

  --shadow-1:     0 1px 0 rgba(255,255,255,0.06) inset, 0 0 0 1px var(--glass-bd) inset;
  --shadow-2:     0 30px 80px -20px rgba(0,0,0,0.6), 0 1px 0 rgba(255,255,255,0.06) inset;

  --font-sans:    -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Inter', 'Segoe UI', sans-serif;
  --font-mono:    'SF Mono', 'JetBrains Mono', Menlo, Consolas, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  letter-spacing: -0.011em;
  overflow-x: hidden;
  position: relative;
}

/* Single, very subtle scenic gradient — gives glass something to refract. */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(620px 420px at 18% -8%, rgba(10,132,255,0.18), transparent 60%),
    radial-gradient(540px 360px at 92% 8%, rgba(94,156,255,0.10), transparent 60%),
    radial-gradient(720px 520px at 50% 105%, rgba(10,132,255,0.10), transparent 65%),
    var(--bg);
  z-index: -2;
}

/* Hairline grid — barely-there, masked to center */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.022) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 70% 65% at 50% 30%, black 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 70% 65% at 50% 30%, black 0%, transparent 75%);
  z-index: -1;
  pointer-events: none;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: 0; }
::selection { background: var(--accent-soft); color: var(--text); }

/* ===== Layout ===== */
.shell { max-width: 1200px; margin: 0 auto; padding: 0 28px; }

section { position: relative; padding: 140px 0; }
section + section { padding-top: 40px; }

/* ===== Eyebrow + headings ===== */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 14px;
  border-radius: 999px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-bd);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  color: var(--text-2);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
}
.eyebrow .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(10,132,255,0.18);
}

.section-head { max-width: 720px; margin: 0 auto 64px; text-align: center; }
.section-head h2 {
  font-size: clamp(34px, 4.6vw, 64px);
  line-height: 1.05;
  letter-spacing: -0.035em;
  font-weight: 600;
  margin: 22px 0 14px;
  color: var(--text);
}
.section-head p {
  font-size: 19px;
  color: var(--text-3);
  margin: 0 auto;
  max-width: 600px;
  line-height: 1.5;
}

/* The single signature gradient — used sparingly */
.gradient-text {
  background: linear-gradient(180deg, #FFFFFF 0%, #C5D8FF 60%, #5E9CFF 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ===== Nav ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border-bottom: 1px solid transparent;
  transition: border-color .35s ease, background .35s ease;
}
.nav.scrolled {
  border-bottom-color: var(--glass-bd);
  background: rgba(0, 0, 0, 0.72);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  letter-spacing: -0.015em;
  font-size: 17px;
  color: var(--text);
}
.brand-mark {
  width: 32px; height: 32px;
  display: block;
  flex-shrink: 0;
}
.nav-links { display: flex; gap: 30px; align-items: center; }
.nav-links a {
  color: var(--text-3);
  font-size: 13.5px;
  font-weight: 400;
  transition: color .2s;
}
.nav-links a:hover { color: var(--text); }
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 980px;
  background: var(--text);
  color: #000;
  font-size: 13px;
  font-weight: 500;
  transition: opacity .2s, transform .2s;
}
.nav-cta:hover { opacity: 0.9; transform: translateY(-1px); color: #000; }

@media (max-width: 760px) {
  .nav-links a:not(.nav-cta) { display: none; }
}

/* ===== Hero ===== */
.hero { padding: 96px 0 100px; text-align: center; }
.hero h1 {
  font-size: clamp(48px, 7.8vw, 104px);
  line-height: 1.02;
  letter-spacing: -0.04em;
  font-weight: 600;
  margin: 28px auto 22px;
  max-width: 13ch;
  color: var(--text);
}
.hero .subtitle {
  font-size: clamp(17px, 1.6vw, 21px);
  color: var(--text-3);
  max-width: 640px;
  margin: 0 auto 42px;
  line-height: 1.45;
}

/* Buttons */
.hero-cta-row {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: 980px;
  font-weight: 500;
  font-size: 15px;
  transition: transform .2s ease, background .2s ease, opacity .2s ease, box-shadow .2s ease;
}
.btn-primary {
  background: var(--accent);
  color: white;
  box-shadow: 0 8px 28px -8px rgba(10,132,255,0.6);
}
.btn-primary:hover { background: #2C95FF; transform: translateY(-1px); }
.btn-secondary {
  background: var(--glass-bg-2);
  border: 1px solid var(--glass-bd);
  color: var(--text);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
}
.btn-secondary:hover { background: rgba(255,255,255,0.10); border-color: var(--glass-bd-2); }

/* Hero stats */
.hero-stats {
  margin: 80px auto 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  max-width: 920px;
}
.hero-stat {
  background: var(--glass-bg);
  border: 1px solid var(--glass-bd);
  border-radius: var(--radius-lg);
  padding: 26px 18px;
  text-align: center;
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  box-shadow: var(--shadow-1);
  transition: transform .35s ease, border-color .35s ease, background .35s ease;
}
.hero-stat:hover {
  transform: translateY(-3px);
  border-color: var(--glass-bd-2);
  background: var(--glass-bg-2);
}
.hero-stat-num {
  font-size: 42px;
  font-weight: 600;
  letter-spacing: -0.035em;
  color: var(--text);
  line-height: 1;
}
.hero-stat-label {
  font-size: 12px;
  color: var(--text-3);
  letter-spacing: 0.06em;
  margin-top: 10px;
  font-weight: 500;
}
@media (max-width: 720px) {
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
}

/* Hero orbit visual */
.hero-orbit {
  margin: 72px auto 0;
  max-width: 920px;
  aspect-ratio: 16 / 9;
  position: relative;
}
.hero-orbit svg { width: 100%; height: 100%; display: block; }

/* ===== Glass panel utility ===== */
.glass {
  background: var(--glass-bg);
  border: 1px solid var(--glass-bd);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-1);
}

/* ===== Features grid ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 14px;
}
.feature-card {
  position: relative;
  background: var(--glass-bg);
  border: 1px solid var(--glass-bd);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border-radius: var(--radius-lg);
  padding: 28px;
  overflow: hidden;
  box-shadow: var(--shadow-1);
  transition: transform .4s cubic-bezier(.2,.7,.3,1), border-color .4s, background .4s;
}
.feature-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(360px circle at var(--mx, 50%) var(--my, 0%),
              rgba(10,132,255,0.16), transparent 55%);
  opacity: 0;
  transition: opacity .35s;
  pointer-events: none;
}
.feature-card:hover { transform: translateY(-4px); border-color: var(--glass-bd-2); background: var(--glass-bg-2); }
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 48px; height: 48px;
  display: grid; place-items: center;
  border-radius: 12px;
  margin-bottom: 18px;
  background: var(--glass-bg-2);
  border: 1px solid var(--glass-bd);
}
.feature-card h3 {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.012em;
  margin: 0 0 8px;
  color: var(--text);
}
.feature-card p { color: var(--text-3); margin: 0; font-size: 14.5px; line-height: 1.55; }

/* ===== Architecture diagram wrapper ===== */
.arch-wrap {
  position: relative;
  background: var(--glass-bg);
  border: 1px solid var(--glass-bd);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border-radius: var(--radius-xl);
  padding: 36px;
  overflow: hidden;
  box-shadow: var(--shadow-2);
}
.arch-svg { width: 100%; height: auto; display: block; }
.arch-legend {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px 28px;
  font-size: 13px;
  color: var(--text-3);
}
.arch-legend .swatch {
  display: inline-block;
  width: 12px; height: 12px;
  border-radius: 3px;
  margin-right: 8px;
  vertical-align: -1px;
}

/* ===== Pipeline ===== */
.pipeline {
  background: var(--glass-bg);
  border: 1px solid var(--glass-bd);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-2);
}
.pipeline svg { width: 100%; height: auto; }

/* ===== Workers ===== */
.workers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 12px;
}
.worker-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-bd);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow-1);
  transition: transform .3s ease, border-color .3s ease, background .3s ease;
}
.worker-card:hover { transform: translateY(-3px); border-color: var(--glass-bd-2); background: var(--glass-bg-2); }
.worker-head { display: flex; align-items: center; gap: 14px; margin-bottom: 12px; }
.worker-badge {
  width: 42px; height: 42px;
  display: grid; place-items: center;
  border-radius: 12px;
  background: var(--glass-bg-2);
  border: 1px solid var(--glass-bd);
  color: var(--text);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.02em;
}
.worker-title { font-size: 16px; font-weight: 600; margin: 0; color: var(--text); letter-spacing: -0.01em; }
.worker-meta { font-size: 12px; color: var(--text-4); margin-top: 2px; font-weight: 400; }
.worker-card p { color: var(--text-3); font-size: 14px; margin: 0; line-height: 1.55; }

/* ===== Connectors marquee ===== */
.connectors-marquee {
  position: relative;
  overflow: hidden;
  margin: 0 -28px;
  padding: 6px 0;
  mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
}
.marquee-row {
  display: flex;
  gap: 12px;
  width: max-content;
  animation: marquee 60s linear infinite;
  padding: 6px 0;
}
.marquee-row.reverse { animation-direction: reverse; animation-duration: 75s; }
.marquee-row:hover { animation-play-state: paused; }
.connector-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 11px 20px;
  border-radius: 980px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-bd);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  color: var(--text-2);
  font-size: 14px;
  font-weight: 400;
  white-space: nowrap;
  transition: background .2s, border-color .2s, color .2s;
}
.connector-pill:hover {
  background: var(--glass-bg-2);
  border-color: var(--glass-bd-2);
  color: var(--text);
}
.connector-pill .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--text-3);
  flex-shrink: 0;
}

/* ===== Stack ===== */
.stack-wrap {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 48px;
  align-items: center;
}
@media (max-width: 900px) { .stack-wrap { grid-template-columns: 1fr; } }
.stack-svg { width: 100%; height: auto; }
.stack-list { display: flex; flex-direction: column; gap: 10px; }
.stack-item {
  display: flex;
  gap: 16px;
  padding: 18px 20px;
  border-radius: var(--radius);
  background: var(--glass-bg);
  border: 1px solid var(--glass-bd);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  transition: transform .3s ease, border-color .3s ease, background .3s ease;
}
.stack-item:hover {
  transform: translateX(3px);
  border-color: var(--glass-bd-2);
  background: var(--glass-bg-2);
}
.stack-icon {
  width: 38px; height: 38px;
  flex-shrink: 0;
  border-radius: 10px;
  display: grid; place-items: center;
  background: var(--glass-bg-2);
  border: 1px solid var(--glass-bd);
}
.stack-item h4 { margin: 0 0 4px; font-size: 15px; font-weight: 600; color: var(--text); letter-spacing: -0.012em; }
.stack-item p { margin: 0; font-size: 13px; color: var(--text-3); line-height: 1.5; }

/* ===== Deployment ===== */
.deploy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 14px;
}
.deploy-card {
  position: relative;
  border-radius: var(--radius-xl);
  padding: 32px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-bd);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  box-shadow: var(--shadow-1);
  overflow: hidden;
}
.deploy-card.featured {
  border-color: var(--glass-bd-2);
  background:
    radial-gradient(420px 220px at 0% 0%, rgba(10,132,255,0.16), transparent 65%),
    var(--glass-bg-2);
}
.deploy-tag {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.10em;
  margin-bottom: 16px;
  text-transform: uppercase;
  background: var(--glass-bg-2);
  border: 1px solid var(--glass-bd);
  color: var(--text-2);
}
.deploy-tag.featured { background: var(--accent-soft); color: var(--accent-2); border-color: rgba(10,132,255,0.3); }
.deploy-card h3 { margin: 0 0 8px; font-size: 22px; font-weight: 600; letter-spacing: -0.02em; color: var(--text); }
.deploy-card p { margin: 0 0 18px; color: var(--text-3); font-size: 14.5px; line-height: 1.55; }
.deploy-card ul { padding: 0; margin: 0; list-style: none; }
.deploy-card li {
  font-size: 14px;
  color: var(--text-3);
  padding: 7px 0;
  padding-left: 26px;
  position: relative;
  border-top: 1px solid var(--glass-bd);
}
.deploy-card li:first-child { border-top: 0; }
.deploy-card li::before {
  content: '';
  position: absolute;
  left: 0; top: 12px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--accent-soft);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230A84FF' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'><path d='M5 12l4 4L19 7'/></svg>");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 10px;
}

/* ===== CTA Final ===== */
.cta-final {
  margin-top: 80px;
  padding: 100px 40px;
  border-radius: var(--radius-xl);
  text-align: center;
  position: relative;
  overflow: hidden;
  background: var(--glass-bg);
  border: 1px solid var(--glass-bd-2);
  backdrop-filter: var(--blur-strong);
  -webkit-backdrop-filter: var(--blur-strong);
  box-shadow: var(--shadow-2);
}
.cta-final::before {
  content: '';
  position: absolute;
  inset: -1px;
  background:
    radial-gradient(700px 380px at 50% 0%, rgba(10,132,255,0.22), transparent 60%),
    radial-gradient(500px 280px at 90% 100%, rgba(94,156,255,0.10), transparent 60%);
  pointer-events: none;
}
.cta-final > * { position: relative; }
.cta-final h2 {
  font-size: clamp(34px, 5vw, 64px);
  font-weight: 600;
  letter-spacing: -0.035em;
  margin: 22px 0 16px;
  line-height: 1.05;
  color: var(--text);
}
.cta-final p {
  color: var(--text-3);
  max-width: 580px;
  margin: 0 auto 36px;
  font-size: 18px;
  line-height: 1.5;
}

/* ===== Footer ===== */
footer {
  padding: 56px 0 80px;
  border-top: 1px solid var(--glass-bd);
  margin-top: 100px;
  background: rgba(0,0,0,0.4);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 30px;
  flex-wrap: wrap;
  color: var(--text-4);
  font-size: 13px;
}
.footer-links { display: flex; gap: 26px; flex-wrap: wrap; }
.footer-links a { color: var(--text-3); transition: color .2s; }
.footer-links a:hover { color: var(--text); }

/* ===== Reveal animation ===== */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .9s ease, transform 1s cubic-bezier(.2,.78,.31,1.05);
}
.reveal.in { opacity: 1; transform: translateY(0); }

/* ===== Animations ===== */
@keyframes pulse-soft {
  0%, 100% { opacity: 0.65; }
  50%      { opacity: 1; }
}
@keyframes marquee {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
@keyframes spin-slow { to { transform: rotate(360deg); } }
@keyframes flow-dash { to { stroke-dashoffset: -200; } }
@keyframes float-soft {
  0%, 100% { transform: translate(0, 0); }
  50%      { transform: translate(20px, -16px); }
}

.svg-flow {
  stroke-dasharray: 4 7;
  animation: flow-dash 5s linear infinite;
}
.svg-pulse-node { transform-origin: center; animation: pulse-soft 3s ease-in-out infinite; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}