/* =========================================================================
   SHUNYA — Landing Page Styles
   Phase Z1: Public Identity Refinement
   Canonical reference: static/shunya_canonical_visual.png
   ========================================================================= */

/* =========================================================================
   1. BASE — relies on design-system.css for --shunya-* tokens
   ========================================================================= */

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

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

body {
  font-family: var(--shunya-font-body);
  background: var(--shunya-bg);
  color: var(--shunya-text);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.5;
}

/* =========================================================================
   2. NAVIGATION
   ========================================================================= */

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 52px;
  padding: 0 32px;
  background: var(--shunya-nav-bg);
  position: relative;
  z-index: 100;
  border-bottom: 1px solid var(--shunya-border);
}

.nav-l { display: flex; align-items: center; gap: 10px; }

.nav-dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--shunya-gold);
  flex-shrink: 0;
}

.nav-logo {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.03em;
  color: var(--shunya-text);
  text-decoration: none;
}

.nav-r {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-a {
  font-size: 12px;
  font-weight: 400;
  color: var(--shunya-text-tertiary);
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: color var(--shunya-duration-normal) var(--shunya-ease);
  position: relative;
}

.nav-a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 1px;
  background: var(--shunya-text);
  transition: width var(--shunya-duration-normal) var(--shunya-ease);
}

.nav-a:hover { color: var(--shunya-text); }
.nav-a:hover::after { width: 100%; }
.nav-a.current { color: var(--shunya-text); }

.nav-si {
  font-size: 11px;
  font-weight: 500;
  color: var(--shunya-text);
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: opacity var(--shunya-duration-normal) var(--shunya-ease);
}

.nav-si:hover { opacity: 0.7; }

/* Sign In button pill */
.nav-si-btn {
  font-size: 11px;
  font-weight: 500;
  color: var(--shunya-surface);
  background: var(--shunya-text);
  text-decoration: none;
  padding: 6px 16px;
  border-radius: 999px;
  letter-spacing: 0.02em;
  transition: opacity var(--shunya-duration-normal) var(--shunya-ease);
}

.nav-si-btn:hover { opacity: 0.85; }

/* =========================================================================
   3. HERO
   ========================================================================= */

.hero {
  display: flex;
  align-items: center;
  gap: 0;
  min-height: calc(100vh - 52px);
  padding: 0 32px;
  max-width: var(--shunya-max-width);
  margin: 0 auto;
}

.hero-c {
  flex: 0 0 auto;
  width: 42%;
  padding-right: 48px;
}

.hero-h {
  font-family: 'Playfair Display', 'Georgia', 'Times New Roman', serif;
  font-size: 54px;
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -0.025em;
  color: var(--shunya-text);
  margin-bottom: 24px;
}

.hero-h-l { display: block; }
.hero-h-l:last-child { font-style: italic; }

.hero-p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--shunya-text-secondary);
  max-width: 380px;
  margin-bottom: 36px;
}

.hero-a {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* =========================================================================
   4. BUTTONS
   ========================================================================= */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 24px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 500;
  font-family: 'Inter', sans-serif;
  text-decoration: none;
  cursor: pointer;
  border: none;
  line-height: 1.2;
  transition: all var(--shunya-duration-normal) var(--shunya-ease);
}

.btn-p {
  background: var(--shunya-text);
  color: var(--shunya-surface);
}

.btn-p:hover { opacity: 0.85; }

.btn-o {
  background: transparent;
  color: var(--shunya-text);
  border: 1px solid var(--shunya-border);
}

.btn-o:hover { border-color: var(--shunya-border-hover); }

.btn-ar {
  font-size: 14px;
  line-height: 0;
  transition: transform var(--shunya-duration-normal) var(--shunya-ease);
}

.btn:hover .btn-ar { transform: translateX(3px); }

/* =========================================================================
   5. ARTWORK PANEL
   ========================================================================= */

.artwork {
  flex: 1;
  min-width: 0;
  aspect-ratio: 736/425;
  background: var(--shunya-artwork-bg);
  border-radius: 20px;
  position: relative;
  overflow: hidden;
}

.artwork svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

/* =========================================================================
   6. SECTIONS
   ========================================================================= */

.section {
  padding: 80px 32px;
  max-width: var(--shunya-max-width);
  margin: 0 auto;
}

.section-l {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--shunya-gold);
  margin-bottom: 16px;
  text-align: center;
  font-family: 'Inter', sans-serif;
}

.section-h {
  font-family: 'Playfair Display', 'Georgia', 'Times New Roman', serif;
  font-size: 32px;
  font-weight: 400;
  text-align: center;
  color: var(--shunya-text);
  margin-bottom: 12px;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.section-p {
  font-size: 14px;
  color: var(--shunya-text-secondary);
  text-align: center;
  max-width: 480px;
  margin: 0 auto 48px;
  line-height: 1.65;
}

/* =========================================================================
   7. EVENT CARDS
   ========================================================================= */

.events {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 24px;
}

.event {
  background: var(--shunya-surface);
  border: 1px solid var(--shunya-border);
  border-radius: 16px;
  padding: 22px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  transition: border-color var(--shunya-duration-normal) var(--shunya-ease);
}

.event:hover { border-color: var(--shunya-gold-light); }

.event-i {
  width: 38px; height: 38px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 16px;
}

.event-i.gold { background: rgba(164,134,95,0.1); }
.event-i.blue { background: rgba(59,130,246,0.08); }
.event-i.emerald { background: rgba(16,185,129,0.08); }
.event-i.amber { background: rgba(245,158,11,0.08); }

.event-c { flex: 1; min-width: 0; }

.event-t {
  font-size: 13px;
  font-weight: 500;
  color: var(--shunya-text);
  margin-bottom: 3px;
  line-height: 1.4;
}

.event-d {
  font-size: 12px;
  color: var(--shunya-text-tertiary);
  line-height: 1.55;
}

.event-time {
  font-size: 10px;
  color: var(--shunya-text-tertiary);
  margin-top: 8px;
  letter-spacing: 0.02em;
}

/* =========================================================================
   8. INDUSTRY STRIP
   ========================================================================= */

.industry {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  gap: 8px;
  padding: 48px 0;
  margin: 0;
  border-top: 1px solid var(--shunya-border);
  border-bottom: 1px solid var(--shunya-border);
}

.industry-i {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 16px 4px;
  text-align: center;
  cursor: default;
  transition: opacity var(--shunya-duration-normal) var(--shunya-ease);
}

.industry-i:hover { opacity: 0.6; }

.industry-i svg {
  width: 22px;
  height: 22px;
  stroke: var(--shunya-text);
  stroke-width: 1.5;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.industry-lbl {
  font-size: 10px;
  font-weight: 400;
  color: var(--shunya-text-tertiary);
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.industry-more {
  text-align: center;
  margin-top: 24px;
  font-size: 12px;
  color: var(--shunya-text-tertiary);
  letter-spacing: 0.02em;
  line-height: 1.5;
}

.industry-more a {
  color: var(--shunya-text);
  text-decoration: none;
  border-bottom: 1px solid var(--shunya-border);
  padding-bottom: 2px;
  transition: border-color var(--shunya-duration-normal) var(--shunya-ease);
}

.industry-more a:hover { border-color: var(--shunya-text); }

/* =========================================================================
   9. FOOTER
   ========================================================================= */

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 32px;
  border-top: 1px solid var(--shunya-border);
  max-width: var(--shunya-max-width);
  margin: 0 auto;
}

.footer-l {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--shunya-gold);
  flex-shrink: 0;
}

.footer-b {
  font-size: 12px;
  font-weight: 500;
  color: var(--shunya-text);
  letter-spacing: 0.03em;
}

.footer-c {
  font-size: 11px;
  color: var(--shunya-text-tertiary);
  letter-spacing: 0.02em;
}

.footer-r {
  display: flex;
  align-items: center;
  gap: 24px;
}

.footer-a {
  font-size: 11px;
  color: var(--shunya-text-tertiary);
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: color var(--shunya-duration-normal) var(--shunya-ease);
}

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

/* =========================================================================
   10. ENTRANCE ANIMATIONS
   ========================================================================= */

@keyframes fade-up {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.afu {
  animation: fade-up var(--shunya-duration-slowest) var(--shunya-ease) forwards;
  opacity: 0;
}

.afi {
  animation: fade-in 1.2s var(--shunya-ease) forwards;
  opacity: 0;
}

.d1 { animation-delay: 0.15s; }
.d2 { animation-delay: 0.30s; }
.d3 { animation-delay: 0.45s; }
.d4 { animation-delay: 0.60s; }
.d5 { animation-delay: 0.75s; }

/* =========================================================================
   11. REDUCED MOTION
   ========================================================================= */

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

/* =========================================================================
   12. FOCUS
   ========================================================================= */

:focus-visible {
  outline: 2px solid var(--shunya-gold);
  outline-offset: 2px;
}

/* =========================================================================
   13. RESPONSIVE: TABLET
   ========================================================================= */

@media (max-width: 960px) {
  .hero {
    flex-direction: column;
    padding: 32px 24px;
    gap: 36px;
    min-height: auto;
  }

  .hero-c {
    width: 100%;
    padding-right: 0;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .hero-p { text-align: center; max-width: 480px; }
  .hero-a { justify-content: center; }
  .artwork { width: 100%; max-width: 600px; }
  .hero-h { font-size: 40px; }

  .section { padding: 56px 24px; }
  .events { grid-template-columns: 1fr; }
  .industry { grid-template-columns: repeat(5, 1fr); }

  .footer {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .footer-r { flex-wrap: wrap; justify-content: center; }
}

/* =========================================================================
   14. RESPONSIVE: MOBILE
   ========================================================================= */

@media (max-width: 600px) {
  .nav { padding: 0 16px; height: 48px; }
  .nav-r { gap: 16px; }
  .nav-a { font-size: 11px; }

  .hero { padding: 20px 16px; gap: 28px; }
  .hero-h { font-size: 30px; }
  .hero-p { font-size: 13px; max-width: 100%; }
  .hero-a { flex-direction: column; gap: 10px; width: 100%; }
  .hero-a .btn { width: 100%; justify-content: center; }
  .artwork { width: 100%; max-width: 100%; }

  .section { padding: 40px 16px; }
  .section-h { font-size: 24px; }
  .section-p { font-size: 13px; }

  .events { gap: 12px; }
  .event { padding: 18px; }

  .industry {
    grid-template-columns: repeat(5, 1fr);
    gap: 4px;
    padding: 28px 0;
  }
  .industry-i { padding: 10px 2px; }
  .industry-i svg { width: 20px; height: 20px; }
  .industry-lbl { font-size: 9px; }

  .footer { padding: 24px 16px; flex-direction: column; gap: 14px; }
  .footer-r { gap: 16px; }
}