/* ============================================
   VELNU — Design System & Global Styles
   Obsidian & Moonstone
   ============================================ */

:root {
  --obsidian: #14161C;
  --moonstone: #D7DDE8;
  --midnight: #0A0C10;
  --text: #F4F6F8;
  --brass: #B59D6A;
  --velvet-indigo: #2A2D4A;
  --dusty-gold: #8B7355;
  --marble: #E8ECF0;
  --sapphire: #1A3A5C;

  --font-display: 'Cinzel', 'Cormorant Garamond', Georgia, serif;
  --font-heading: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Inter', 'Manrope', system-ui, sans-serif;

  --glow-brass: 0 0 40px rgba(181, 157, 106, 0.35);
  --glow-moonstone: 0 0 60px rgba(215, 221, 232, 0.15);
  --glow-door: 0 0 80px rgba(244, 246, 248, 0.08);

  --transition-soft: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-door: 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-mystery: 0.9s cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-weight: 300;
  color: var(--text);
  background: var(--midnight);
  overflow-x: hidden;
  line-height: 1.6;
}

body.nav-open {
  overflow: hidden;
}

body.door-opening {
  overflow: hidden;
}

img, canvas {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

ul[role="list"] {
  list-style: none;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 10000;
  padding: 0.75rem 1.5rem;
  background: var(--brass);
  color: var(--midnight);
  border-radius: 2px;
  font-size: 0.875rem;
  font-weight: 500;
  transition: top 0.2s;
}

.skip-link:focus {
  top: 1rem;
}

/* Typography */
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 400;
  letter-spacing: 0.08em;
  line-height: 1.15;
  color: var(--moonstone);
}

.section-subtitle {
  font-family: var(--font-body);
  font-size: clamp(0.75rem, 1.2vw, 0.9375rem);
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--brass);
  opacity: 0.7;
  margin-top: 0.75rem;
}

.section-header {
  text-align: center;
  padding: 3rem 1.5rem 2rem;
  position: relative;
  z-index: 3;
}

.section-header--subtle {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-mystery), transform var(--transition-mystery);
}

.section-header--subtle.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Section base */
.section {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  overflow: hidden;
}

.section canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

/* ============================================
   Floating Key Navigation
   ============================================ */

.key-nav {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 9000;
  width: 48px;
  height: 48px;
}

.key-nav__trigger {
  position: relative;
  z-index: 2;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(20, 22, 28, 0.6);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(181, 157, 106, 0.2);
  transition: transform var(--transition-soft), border-color var(--transition-soft), box-shadow var(--transition-soft);
}

.key-nav__trigger:hover,
.key-nav__trigger:focus-visible {
  border-color: rgba(181, 157, 106, 0.5);
  box-shadow: var(--glow-brass);
  outline: none;
}

.key-nav.open .key-nav__trigger {
  transform: rotate(90deg);
}

.key-nav__icon {
  position: relative;
  width: 22px;
  height: 22px;
  display: block;
}

.key-nav__bow {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 14px;
  height: 14px;
  border: 2px solid var(--brass);
  border-radius: 50%;
  border-right-color: transparent;
  border-bottom-color: transparent;
  transform: translateX(-50%) rotate(-45deg);
}

.key-nav__shaft {
  position: absolute;
  top: 8px;
  left: 50%;
  width: 2px;
  height: 14px;
  background: var(--brass);
  transform: translateX(-50%);
}

.key-nav__bit {
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 8px;
  height: 6px;
  transform: translateX(-50%);
  background: linear-gradient(to right, transparent 40%, var(--brass) 40%, var(--brass) 60%, transparent 60%);
}

.key-nav__ring {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 48px;
  height: 48px;
  border: 1px solid rgba(181, 157, 106, 0);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.5s, height 0.5s, border-color 0.5s, opacity 0.5s;
  pointer-events: none;
}

.key-nav.open .key-nav__ring {
  width: 280px;
  height: 280px;
  border-color: rgba(181, 157, 106, 0.12);
  opacity: 1;
}

.key-nav__radial {
  position: fixed;
  top: calc(1.5rem + 24px);
  right: calc(1.5rem + 24px);
  transform: translate(50%, -50%);
  width: 0;
  height: 0;
  list-style: none;
  pointer-events: none;
}

.key-nav__radial.open {
  pointer-events: auto;
}

.key-nav__radial li {
  position: absolute;
  opacity: 0;
  transform: scale(0.5);
  transition: opacity 0.4s, transform 0.4s;
}

.key-nav.open .key-nav__radial li {
  opacity: 1;
  transform: scale(1);
}

.key-nav.open .key-nav__radial li:nth-child(1) { transition-delay: 0.05s; }
.key-nav.open .key-nav__radial li:nth-child(2) { transition-delay: 0.1s; }
.key-nav.open .key-nav__radial li:nth-child(3) { transition-delay: 0.15s; }
.key-nav.open .key-nav__radial li:nth-child(4) { transition-delay: 0.2s; }
.key-nav.open .key-nav__radial li:nth-child(5) { transition-delay: 0.25s; }
.key-nav.open .key-nav__radial li:nth-child(6) { transition-delay: 0.3s; }

.key-nav__radial a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(20, 22, 28, 0.85);
  border: 1px solid rgba(181, 157, 106, 0.25);
  backdrop-filter: blur(12px);
  transition: border-color var(--transition-soft), box-shadow var(--transition-soft), transform var(--transition-soft);
}

.key-nav__radial a:hover,
.key-nav__radial a:focus-visible {
  border-color: var(--brass);
  box-shadow: var(--glow-brass);
  transform: scale(1.08);
  outline: none;
}

.key-nav__label {
  font-family: var(--font-display);
  font-size: 0.625rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--moonstone);
  text-align: center;
  line-height: 1.3;
}

/* Radial positions */
.key-nav.open .key-nav__radial li:nth-child(1) { transform: translate(-120px, -60px); }
.key-nav.open .key-nav__radial li:nth-child(2) { transform: translate(-160px, 20px); }
.key-nav.open .key-nav__radial li:nth-child(3) { transform: translate(-120px, 100px); }
.key-nav.open .key-nav__radial li:nth-child(4) { transform: translate(-20px, 130px); }
.key-nav.open .key-nav__radial li:nth-child(5) { transform: translate(60px, 80px); }
.key-nav.open .key-nav__radial li:nth-child(6) { transform: translate(80px, -20px); }

/* Contact Portal Dialog */
.contact-portal {
  position: fixed;
  inset: 0;
  margin: auto;
  padding: 0;
  border: none;
  background: transparent;
  max-width: 90vw;
  width: 480px;
  color: var(--text);
}

.contact-portal::backdrop {
  background: rgba(10, 12, 16, 0.85);
  backdrop-filter: blur(8px);
}

.contact-portal__frame {
  position: relative;
  padding: 3rem 2.5rem;
  background: var(--obsidian);
  border: 1px solid rgba(181, 157, 106, 0.3);
  box-shadow: var(--glow-brass), inset 0 0 60px rgba(181, 157, 106, 0.05);
}

.contact-portal__close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 1.5rem;
  color: var(--moonstone);
  opacity: 0.6;
  transition: opacity 0.2s;
  line-height: 1;
}

.contact-portal__close:hover {
  opacity: 1;
}

.contact-portal__title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  letter-spacing: 0.06em;
  color: var(--moonstone);
  margin-bottom: 1rem;
}

.contact-portal__desc {
  font-size: 0.9375rem;
  color: rgba(244, 246, 248, 0.7);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.contact-portal__link {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 1.125rem;
  letter-spacing: 0.1em;
  color: var(--brass);
  border-bottom: 1px solid rgba(181, 157, 106, 0.4);
  padding-bottom: 0.25rem;
  transition: color 0.3s, border-color 0.3s;
}

.contact-portal__link:hover {
  color: var(--moonstone);
  border-color: var(--moonstone);
}

.contact-portal__whisper {
  margin-top: 2rem;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(181, 157, 106, 0.5);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Mobile nav adjustments */
@media (max-width: 640px) {
  .key-nav {
    top: 1rem;
    right: 1rem;
  }

  .key-nav.open .key-nav__ring {
    width: 220px;
    height: 220px;
  }

  .key-nav__radial a {
    width: 60px;
    height: 60px;
  }

  .key-nav__label {
    font-size: 0.5rem;
  }

  .key-nav.open .key-nav__radial li:nth-child(1) { transform: translate(-90px, -50px); }
  .key-nav.open .key-nav__radial li:nth-child(2) { transform: translate(-120px, 15px); }
  .key-nav.open .key-nav__radial li:nth-child(3) { transform: translate(-90px, 80px); }
  .key-nav.open .key-nav__radial li:nth-child(4) { transform: translate(-15px, 100px); }
  .key-nav.open .key-nav__radial li:nth-child(5) { transform: translate(45px, 65px); }
  .key-nav.open .key-nav__radial li:nth-child(6) { transform: translate(60px, -15px); }
}