/* ==========================================================================
   POSEITECH — Shared Styles
   ========================================================================== */

:root {
  --bg: #0A0E1A;
  --bg-elevated: #111729;
  --bg-card: #161D30;
  --text: #F4F0E8;
  --text-dim: #9AA4B8;
  --text-muted: #5C6478;
  --accent: #00E5CC;
  --accent-dim: #0A8C7E;
  --accent-warm: #FF8C5A;
  --border: rgba(244, 240, 232, 0.08);
  --border-strong: rgba(244, 240, 232, 0.16);
  --grid-line: rgba(0, 229, 204, 0.06);

  --font-display: "Fraunces", "Times New Roman", serif;
  --font-sans: "DM Sans", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", monospace;

  --maxw: 1280px;
  --gutter: clamp(20px, 4vw, 48px);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(0, 229, 204, 0.08), transparent 70%),
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 100% 100%, 64px 64px, 64px 64px;
  background-position: 0 0, 0 0, 0 0;
}

::selection { background: var(--accent); color: var(--bg); }

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }

/* ========== Typography ========== */

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.02em;
  font-variation-settings: "opsz" 144, "SOFT" 30;
}

h1 { font-size: clamp(3rem, 8vw, 6.5rem); }
h2 { font-size: clamp(2.25rem, 5vw, 4rem); }
h3 { font-size: clamp(1.5rem, 2.5vw, 2rem); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: "";
  width: 24px; height: 1px;
  background: var(--accent);
  display: inline-block;
}

.italic { font-style: italic; font-feature-settings: "ss01"; color: var(--accent); }

/* ========== Layout ========== */

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

section { position: relative; padding: clamp(80px, 12vw, 160px) 0; }

/* ========== Navigation ========== */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 20px 0;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(10, 14, 26, 0.7);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-mark {
  width: 28px; height: 28px;
  display: inline-block;
  position: relative;
}

.logo-mark svg { width: 100%; height: 100%; }

.nav-links {
  display: flex;
  gap: 36px;
  list-style: none;
  font-size: 0.9rem;
}

.nav-links a {
  position: relative;
  color: var(--text-dim);
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); }
.nav-links a.active { color: var(--text); }
.nav-links a.active::after {
  content: "";
  position: absolute;
  bottom: -6px; left: 0; right: 0;
  height: 1px;
  background: var(--accent);
}

.nav-cta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 10px 18px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  transition: all 0.2s;
}
.nav-cta:hover {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}

.menu-toggle { display: none; }

@media (max-width: 760px) {
  .nav-links, .nav-cta { display: none; }
  .menu-toggle {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-dim);
  }
}

/* ========== Buttons ========== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 28px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: 999px;
  transition: all 0.25s;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg);
}
.btn-primary:hover {
  background: var(--text);
  transform: translateY(-2px);
}

.btn-ghost {
  border: 1px solid var(--border-strong);
  color: var(--text);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn .arrow { transition: transform 0.2s; }
.btn:hover .arrow { transform: translateX(4px); }

/* ========== Section labels ========== */

.section-label {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 48px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.section-label .num {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
}

.section-label .label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dim);
}

/* ========== Footer ========== */

footer {
  border-top: 1px solid var(--border);
  padding: 80px 0 40px;
  margin-top: 80px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}

@media (max-width: 760px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

.footer-brand h4 {
  font-family: var(--font-display);
  font-size: 2rem;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.footer-brand p {
  color: var(--text-dim);
  max-width: 340px;
  line-height: 1.55;
}

.footer-col h5 {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 20px;
  font-weight: 500;
}

.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a {
  color: var(--text-dim);
  font-size: 0.95rem;
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--accent); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

@media (max-width: 520px) {
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
}

/* ========== Animations ========== */

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes drift {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(20px, -30px); }
}

.reveal {
  opacity: 0;
  animation: fadeUp 0.9s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

.reveal-1 { animation-delay: 0.1s; }
.reveal-2 { animation-delay: 0.25s; }
.reveal-3 { animation-delay: 0.4s; }
.reveal-4 { animation-delay: 0.55s; }
.reveal-5 { animation-delay: 0.7s; }

/* ========== Utility ========== */

.divider {
  height: 1px;
  background: var(--border);
  margin: 0;
}

.glow-orb {
  position: absolute;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 229, 204, 0.15), transparent 60%);
  filter: blur(60px);
  pointer-events: none;
  animation: drift 12s ease-in-out infinite;
}