/* ═══════════════════════════════════════════════════════════════
   Hyperfix Labs — Shared Styles
   Common CSS used across all pages (index, hud, hypernote, cliforge)
   ═══════════════════════════════════════════════════════════════ */

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; cursor: default; }
a, button, [role="button"], label, select, summary { cursor: pointer; }
input, textarea { cursor: text; }

:root {
  --bg: #fafbfc;
  --bg-raised: #f0f1f3;
  --bg-card: #ffffff;
  --bg-card-hover: #f6f6f8;
  --border: #e2e3e8;
  --border-hover: #c8c9d0;
  --text: #12121a;
  --text-2: #5c5c6d;
  --text-3: #707088;
  --accent: #8B5CF6;
  --accent-hover: #7C3AED;
  --accent-glow: rgba(139, 92, 246, 0.08);
  --accent-glow-md: rgba(139, 92, 246, 0.12);
  --accent-glow-lg: rgba(139, 92, 246, 0.2);
  --purple: #8B5CF6;
  --radius: 16px;
  --radius-lg: 24px;
  --font-display: 'Clash Display', sans-serif;
  --font-body: 'Outfit', sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  line-height: 1.6;
  font-weight: 400;
}

/* ─── Grain ─── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 200px;
}

/* ─── Cursor Glow ─── */
.cursor-glow {
  position: fixed;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.06), transparent 70%);
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: opacity 0.4s ease;
  opacity: 0;
}
.cursor-glow.visible { opacity: 1; }

/* ─── Nav ─── */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 clamp(1.5rem, 5vw, 4rem);
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(250, 251, 252, 0.7);
  backdrop-filter: blur(24px) saturate(1.4);
  -webkit-backdrop-filter: blur(24px) saturate(1.4);
  border-bottom: 1px solid transparent;
  transition: all 0.5s var(--ease);
}
nav.scrolled {
  background: rgba(250, 251, 252, 0.92);
  border-bottom-color: var(--border);
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.04em;
  color: var(--text);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  transition: opacity 0.3s ease;
}
.nav-logo:hover { opacity: 0.8; }

.nav-right {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.nav-link {
  color: var(--text-2);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.45rem 1rem;
  border-radius: 100px;
  transition: color 0.3s ease, background 0.3s ease;
}
.nav-link:hover { color: var(--text); background: rgba(0,0,0,0.04); }

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--accent);
  color: #fff;
  padding: 0.5rem 1.35rem;
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none;
  transition: all 0.3s var(--ease);
  letter-spacing: -0.01em;
}
.nav-cta:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 24px var(--accent-glow-md);
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}
.mobile-toggle span {
  width: 20px;
  height: 1.5px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* ─── Layout ─── */
section { padding: 0 clamp(1.5rem, 5vw, 4rem); }
.container { max-width: 1180px; margin: 0 auto; }

/* ─── Buttons ─── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.9rem 2.2rem;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  border: none;
  border-radius: 100px;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.35s var(--ease);
  letter-spacing: -0.01em;
}
.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px var(--accent-glow-lg);
}
.btn-primary svg { transition: transform 0.3s var(--ease); }
.btn-primary:hover svg { transform: translateX(3px); }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.9rem 2.2rem;
  background: transparent;
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 1rem;
  border: 1px solid var(--border);
  border-radius: 100px;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.35s var(--ease);
  letter-spacing: -0.01em;
}
.btn-secondary:hover {
  border-color: var(--border-hover);
  background: rgba(0,0,0,0.025);
  transform: translateY(-2px);
}

/* ─── Section Headings ─── */
.section-eyebrow {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 0.15em;
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
}
.section-eyebrow::after {
  content: '';
  width: 32px;
  height: 1px;
  background: var(--accent);
  opacity: 0.5;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin-bottom: 1.25rem;
}

.section-desc {
  font-size: 1rem;
  color: var(--text-2);
  max-width: 520px;
  line-height: 1.7;
}

/* ─── Features ─── */
.features { padding-top: 8rem; padding-bottom: 8rem; }
.features-header { margin-bottom: 4rem; }

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.feature-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
  transition: all 0.4s var(--ease);
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}
.feature-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(139, 92, 246, 0.04), transparent 40%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}
.feature-card:hover::before { opacity: 1; }
.feature-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.08);
}

.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  background: rgba(139, 92, 246, 0.08);
  color: var(--accent);
}
.feature-icon svg { width: 20px; height: 20px; }

.feature-card h3 {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.feature-card p {
  font-size: 0.88rem;
  color: var(--text-2);
  line-height: 1.6;
}

/* ─── CTA Section ─── */
.cta-section {
  padding-top: 2rem;
  padding-bottom: 10rem;
}

.cta-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: clamp(3rem, 6vw, 5rem);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: -60%;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 500px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.08), transparent 60%);
  pointer-events: none;
}
.cta-box::after {
  content: '';
  position: absolute;
  top: 0;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  border-radius: 2px;
  pointer-events: none;
}

.cta-inner { position: relative; z-index: 2; }
.cta-inner .section-eyebrow { justify-content: center; }
.cta-inner .section-eyebrow::after { display: none; }
.cta-inner .section-title { margin-bottom: 1rem; }

.cta-desc {
  font-size: 1.05rem;
  color: var(--text-2);
  max-width: 480px;
  margin: 0 auto 2.5rem;
  line-height: 1.65;
}

.cta-btns {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ─── Shared Keyframes ─── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes orbDrift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(25px, -35px) scale(1.03); }
  66% { transform: translate(-15px, 25px) scale(0.97); }
}

@keyframes shimmer {
  0% { background-position: 0% center; }
  100% { background-position: 200% center; }
}

@keyframes pulse {
  0% { transform: scale(1); opacity: 0.7; }
  100% { transform: scale(2.8); opacity: 0; }
}

/* ─── Focus ─── */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ─── Scroll Reveal ─── */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-d1 { transition-delay: 0.08s; }
.reveal-d2 { transition-delay: 0.16s; }
.reveal-d3 { transition-delay: 0.24s; }
.reveal-d4 { transition-delay: 0.32s; }
.reveal-d5 { transition-delay: 0.40s; }
.reveal-d6 { transition-delay: 0.48s; }

/* ─── Footer ─── */
footer {
  padding: 2.5rem clamp(1.5rem, 5vw, 4rem);
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}
.footer-links a {
  color: var(--text-3);
  text-decoration: none;
  font-size: 0.8rem;
  transition: color 0.3s ease;
}
.footer-links a:hover { color: var(--text-2); }

.footer-inner p {
  font-size: 0.78rem;
  color: var(--text-3);
}
.footer-inner p strong { color: var(--text-2); font-weight: 500; }

/* ─── Responsive: 900px ─── */
@media (max-width: 900px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .section-eyebrow { justify-content: center; }
  .section-eyebrow::after { display: none; }
}

/* ─── Responsive: 640px ─── */
@media (max-width: 640px) {
  .cursor-glow { display: none; }

  nav { padding: 0 1.25rem; }

  .nav-right {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(250, 251, 252, 0.97);
    backdrop-filter: blur(24px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
  }
  .nav-right.open { display: flex; }
  .nav-right .nav-link { font-size: 1.15rem; }
  .nav-right .nav-cta { font-size: 1rem; padding: 0.7rem 2rem; }

  .mobile-toggle { display: flex; position: absolute; right: 1.25rem; }
  nav { justify-content: center; }
  .mobile-toggle.active span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
  .mobile-toggle.active span:nth-child(2) { opacity: 0; }
  .mobile-toggle.active span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

  section { padding-left: 1.25rem; padding-right: 1.25rem; }

  .features-grid { grid-template-columns: 1fr; }
  .features { padding-top: 5rem; padding-bottom: 5rem; }

  .cta-section { padding-bottom: 6rem; }
  .cta-box { padding: 2.5rem 1.5rem; }
  .cta-btns { flex-direction: column; align-items: center; }

  .footer-inner { flex-direction: column; gap: 1rem; text-align: center; }
  .footer-links { flex-wrap: wrap; justify-content: center; }
}

/* ─── Reduced Motion ─── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
  .reveal {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}