/* ==========================================================
   STYLES.CSS — VOID PLATINUM / SIGNAL GRID
   
   Nav: logo LEFT, all links RIGHT (asymmetric flex)
   Column separators: platinum-recolored, kept exactly
   Back-to-top: translateY preserved for JS class toggle
   Footer: full original restored + platinum variables
   Section depth: each zone has its own layered background
   Hover: ice-blue signal color, no white/grey defaults
   ========================================================== */

/* ========== 1. RESET ========== */

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  overflow-y: scroll;
}

body { margin: 0; }

/* ========== 2. TOKENS ========== */

:root {
  /* Nav geometry */
  --nav-item-width: 80px;
  --nav-item-spacing: 4rem;
  --nav-separator: column;

  /* Fonts — display variants are defined in fonts.css via @font-face.
     styles.css re-declares only --font-display as the default heading font.
     The richer variants (bold, condensed, light) come from fonts.css and
     are used directly by component-level rules (nav, footer, etc). */
  --font-display: "Bourgeois-Med", "Inter", system-ui, -apple-system, sans-serif;
  --font-body:    "Inter", system-ui, -apple-system, sans-serif;
  --font-mono:    "DM Mono", "Menlo", monospace;

  /* Layout */
  --page-max-width:      1200px;
  --page-padding-inline: 1.5rem;

  /* Spacing */
  --space-2xs: 0.25rem;
  --space-xs:  0.5rem;
  --space-sm:  0.75rem;
  --space-md:  0.8rem;
  --space-lg:  1.5rem;
  --space-xl:  2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* Radius */
  --radius-soft: 0.25rem;

  /* Glass */
  --glass-bg:     rgba(0, 0, 8, 0.55);
  --glass-border: rgba(168, 168, 192, 0.22);
  --glass-blur:   4px;

  /* Shadows */
  --shadow-soft: 0 12px 40px rgba(0, 0, 0, 0.85);
  --glow-soft:   0 0 16px rgba(168, 168, 192, 0.25);

  /* Content width */
  --content-max-width: 720px;

  /* Hero */
  --hero-height-desktop: min(70vh, 520px);
  --hero-height-mobile:  min(60vh, 420px);
}

/* ========== 3. TYPOGRAPHY ========== */

body {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 300;
  line-height: 1.65;
  background-color: var(--color-bg);
  color: var(--color-text);
  min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: 0.12em;
  margin: 0 0 var(--space-md);
  color: var(--color-heading);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.9);
}

h1 {
  font-size: clamp(2rem, 1.6rem + 1.2vw, 3rem);
  letter-spacing: 0.15em;
}
h2 { font-size: clamp(1.6rem, 1.3rem + 0.8vw, 2.3rem); }
h3 { font-size: clamp(1.3rem, 1.1rem + 0.5vw, 1.8rem); }

p {
  margin: 0 0 var(--space-md);
  color: var(--color-text-muted);
  font-weight: 300;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s ease, text-shadow 0.2s ease;
}

a:hover,
a:focus-visible {
  color: var(--color-accent-strong);
  text-shadow: var(--glow-accent-soft);
}

/* Mono utility */
.mono, time, .data-label {
  font-family: var(--font-mono);
  font-weight: 300;
  letter-spacing: 0.04em;
}

/* ========== 4. LAYOUT SHELL ========== */

/* 
  SIGNAL GRID BACKGROUND
  The canvas sits behind everything. The body gradient layers
  on top of it via CSS, creating depth zones.
*/
body {
  background:
    radial-gradient(ellipse at 15% 20%, rgba(0, 8, 30, 0.85) 0%, transparent 40%),
    radial-gradient(ellipse at 85% 80%, rgba(0, 4, 18, 0.9) 0%, transparent 45%),
    #080810;
  color-scheme: dark;
  position: relative;
}

/* Signal grid canvas — fixed, behind everything */
#signal-grid-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.55; /* let the page content breathe above it */
}

/* Everything above the canvas */
.nav-wrapper,
#spa-content,
.footer,
.back-to-top {
  position: relative;
  z-index: 1;
}

.content {
  max-width: var(--page-max-width);
  margin: 0 auto;
  padding-inline: var(--page-padding-inline);
  padding-block: var(--space-2xl);
}

.container {
  width: 100%;
  max-width: var(--content-max-width);
  margin-inline: auto;
}

/* Glass containers — frosted obsidian panels */
.glass-container {
  position: relative;
  margin-inline: auto;
  max-width: var(--content-max-width);
  padding: var(--space-xl);
  border-radius: var(--radius-soft);
  background:
    linear-gradient(135deg, rgba(232, 232, 240, 0.025) 0%, transparent 45%),
    rgba(8, 8, 20, 0.82);
  border: 1px solid rgba(168, 168, 192, 0.2);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  box-shadow:
    inset 0 1px 0 rgba(232, 232, 240, 0.05),
    0 4px 24px rgba(0, 0, 10, 0.8),
    0 1px 0 rgba(var(--crimson-bright-rgb), 0.06);
}

/* Bevel edge — machined highlight */
.glass-container::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(
    135deg,
    rgba(168, 168, 192, 0.28) 0%,
    transparent 40%,
    transparent 60%,
    rgba(var(--crimson-bright-rgb), 0.1) 100%
  );
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.glass-container + .glass-container {
  margin-top: var(--space-xl);
}

.stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

/* ========== 5. HERO ========== */

.hero {
  position: relative;
  width: 100%;
  overflow: hidden;
  background-color: #000;
  border-bottom: 1px solid rgba(168, 168, 192, 0.45);
  box-shadow:
    var(--shadow-deep),
    0 1px 0 rgba(var(--crimson-bright-rgb), 0.35),
    inset 0 -40px 80px rgba(8, 8, 16, 0.8);
}

.hero-image {
  width: 100%;
  height: var(--hero-height-desktop);
  object-fit: cover;
  display: block;
  filter: saturate(0.7) contrast(1.1) brightness(0.8);
}

.hero-logo {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.hero-logo img {
  max-width: min(40%, 380px);
  width: 100%;
  filter:
    drop-shadow(0 0 30px rgba(0, 0, 0, 0.99))
    drop-shadow(0 0 40px var(--color-gold-dim))
    drop-shadow(0 0 60px var(--color-crimson-dim));
}

@media (max-width: 768px) {
  .hero-image { height: var(--hero-height-mobile); }
  .hero-logo img { max-width: 65%; }
}

/* ========== 5b. HOME HERO — 3D LOGO VIEWER ========== */

/*
  HTML structure expected on the homepage hero only:

  <div class="hero">
    <img class="hero-image" src="..." alt="" />   <!-- fallback / always-present -->
    <div class="hero-logo">
      <img src="assets/logo.svg" alt="Artist Logo" />  <!-- fallback logo -->
    </div>
    <div id="logo-3d-mount" class="logo-3d-mount"></div>  <!-- 3D viewer renders here -->
  </div>

  Default state: 3D mount is present but transparent/invisible until the
  model loads (logo-3d-ready class added by logo-3d.js). This avoids a
  flash of empty space before the GLB downloads.

  If WebGL is unavailable or the model fails: logo-3d.js adds
  .logo-3d-fallback to the mount, which hides it and lets the original
  .hero-image + .hero-logo show through untouched — zero regression risk.
*/

.logo-3d-mount {
  position: absolute;
  inset: 0;
  z-index: 2;             /* above glitter canvas (z:1) */
  opacity: 0;
  transition: opacity 0.6s ease;
  cursor: grab;
}

.logo-3d-mount.logo-3d-ready {
  opacity: 1;
}

/* When the 3D mount is ready, fade out the static fallback beneath it */
.logo-3d-mount.logo-3d-ready ~ .hero-image,
.hero:has(.logo-3d-mount.logo-3d-ready) .hero-logo {
  opacity: 0;
  transition: opacity 0.6s ease;
}

/* If 3D failed entirely, hide the mount and let fallback show at full opacity */
.logo-3d-mount.logo-3d-fallback {
  display: none;
}

.logo-3d-mount canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
}

/* Ambient glow ring beneath the 3D object — ice-blue, subtle, stationary */
.logo-3d-mount::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at 50% 55%,
    rgba(var(--crimson-bright-rgb), 0.12) 0%,
    transparent 45%
  );
  pointer-events: none;
  z-index: -1;
}



/*
  Layout change from original:
  Original: grid 1fr auto 1fr  (left-logo-right, symmetric)
  New:      flex row, logo at left edge, both link groups at right edge
  
  HTML stays exactly the same (nav-left + nav-logo + nav-right).
  We just reorder with flex + margin-left: auto on nav-left.
*/

.nav-wrapper {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  background: linear-gradient(
    to bottom,
    rgba(8, 8, 16, 0.97),
    rgba(8, 8, 16, 0.88),
    rgba(8, 8, 16, 0.72)
  );
  border-bottom: 1px solid rgba(168, 168, 192, 0.45);
  box-shadow:
    0 4px 20px rgba(0, 0, 10, 0.9),
    inset 0 -1px 0 rgba(var(--crimson-bright-rgb), 0.35);
}

.nav {
  max-width: var(--page-max-width);
  margin: 0 auto;
  padding-inline: var(--page-padding-inline);
  padding-block: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo — left anchor */
.nav-logo {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex-shrink: 0;
  margin-right: auto;
}

.nav-logo img {
  height: 45px;
  width: auto;
  /* Base state — theme CSS (theme-cobalt.css) overrides filter fully.
     This rule only sets geometry; all filter/glow is in the active theme file. */
  transition: filter 0.35s ease;
}

.nav-logo:hover img {
  /* Hover handled entirely by theme — no rule here to avoid conflicts. */
}

/* Right link group - sits at far right */
.nav-right {
  display: flex;
  gap: var(--nav-item-spacing);
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-right li {
  position: relative;
  display: flex;
  align-items: center;
}

/* Nav link text — dynamic width, uses padding instead of fixed width */
.nav-right a {
  font-family: var(--font-display);
  font-size: 1.8rem;
  letter-spacing: 0.16em;
  color: var(--color-nav);
  padding: 0.35rem 0.5rem;
  position: relative;
  display: inline-block;
  text-align: center;
  opacity: 0.82;
  transition: color 0.25s ease, text-shadow 0.25s ease, opacity 0.25s ease;
}

/* Hover underline: the glowing bar */
.nav-right a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.1rem;
  height: 2px;
  border-radius: 999px;
  background: radial-gradient(
    circle,
    var(--color-crimson-bright) 0%,
    var(--color-crimson-dark) 60%,
    transparent 100%
  );
  opacity: 0;
  transform: scaleX(0.6);
  transform-origin: center;
  box-shadow: var(--glow-crimson-intense);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

/* Hover — ice-blue signal, not white */
.nav-right a:hover,
.nav-right a:focus-visible {
  color: var(--color-crimson-bright);
  text-shadow: var(--glow-crimson);
  opacity: 1;
}

.nav-right a:hover::after,
.nav-right a:focus-visible::after {
  opacity: 1;
  transform: scaleX(1);
}

/* Active — platinum glow */
.nav-right a.nav-active {
  color: var(--color-gold-bright);
  text-shadow: var(--glow-gold);
  opacity: 1;
}

.nav-right a.nav-active::after {
  opacity: 1;
  transform: scaleX(1);
  background: radial-gradient(
    circle,
    var(--color-gold-bright) 0%,
    var(--color-gold-dark) 60%,
    transparent 100%
  );
  box-shadow: 0 0 16px var(--color-gold), 0 0 24px var(--color-gold-dim);
}

/* Active hover — stays platinum, underline goes ice-blue */
.nav-right a.nav-active:hover,
.nav-right a.nav-active:focus-visible {
  color: var(--color-gold-bright);
  text-shadow: var(--glow-crimson-intense);
}

.nav-right a.nav-active:hover::after,
.nav-right a.nav-active:focus-visible::after {
  background: radial-gradient(
    circle,
    var(--color-crimson-bright) 0%,
    var(--color-crimson-dark) 60%,
    transparent 100%
  );
  box-shadow: var(--glow-crimson-intense);
}

/* ===== NAV SEPARATORS — star pulse ===== */

/* Outer star — before first nav-right item */
.nav-right li:first-child::before {
  content: "★";
  position: absolute;
  left: calc(-1 * var(--nav-item-spacing) / 2);
  top: 50%;
  transform: translate(-50%, -50%);
  color: rgba(var(--crimson-bright-rgb), 0.6);
  font-size: 18px;
  text-shadow: 0 0 30px rgba(var(--crimson-bright-rgb), 0.5);
  animation: pulseStarLeft 2s ease-in-out infinite;
  font-family: serif;
  line-height: 1;
  background: none !important;
  box-shadow: none !important;
  width: auto;
  height: auto;
  pointer-events: none;
}

/* Star pulse separator — musical, futuristic */
.nav-right li:not(:last-child)::after {
  content: "★";
  position: absolute;
  right: calc(-1 * var(--nav-item-spacing) / 2);
  top: 50%;
  transform: translate(50%, -50%);
  color: rgba(var(--crimson-bright-rgb), 0.6);
  font-size: 18px;
  text-shadow: 0 0 30px rgba(var(--crimson-bright-rgb), 0.5);
  animation: pulseStar 2s ease-in-out infinite;
  font-family: serif;
  line-height: 1;
  background: none !important;
  box-shadow: none !important;
  width: auto;
  height: auto;
  pointer-events: none;
}

/* Outer column — after last nav-right item */
.nav-right li:last-child::after {
  content: "★";
  position: absolute;
  right: calc(-1 * var(--nav-item-spacing) / 2);
  top: 50%;
  transform: translate(50%, -50%);
  color: rgba(var(--crimson-bright-rgb), 0.6);
  font-size: 18px;
  text-shadow: 0 0 30px rgba(var(--crimson-bright-rgb), 0.5);
  animation: pulseStar 2s ease-in-out infinite;
  font-family: serif;
  line-height: 1;
  background: none !important;
  box-shadow: none !important;
  width: auto;
  height: auto;
  pointer-events: none;
}

/* ::after stars sit to the RIGHT — translate(50%, -50%) */
@keyframes pulseStar {
  0%, 100% { opacity: 0.4; transform: translate(50%, -50%) scale(1) rotate(0deg); }
  50%       { opacity: 0.9; transform: translate(50%, -50%) scale(1.8) rotate(0deg); }
}

/* ::before star sits to the LEFT — must mirror the X direction */
@keyframes pulseStarLeft {
  0%, 100% { opacity: 0.4; transform: translate(-50%, -50%) scale(1) rotate(0deg); }
  50%       { opacity: 0.9; transform: translate(-50%, -50%) scale(1.8) rotate(0deg); }
}

/* ===== WAVE DELAYS — 5-star sequential firing ===== */
.nav-right li:first-child::before   { animation: pulseStarLeft 2s ease-in-out 0.0s infinite; }
.nav-right li:first-child::after    { animation-delay: 0.468s; }
.nav-right li:nth-child(2)::after   { animation-delay: 0.938s; }
.nav-right li:nth-child(3)::after   { animation-delay: 1.406s; }
.nav-right li:last-child::after     { animation-delay: 1.758s; }

/* ========== 7. MOBILE NAVIGATION ========== */

.mobile-menu-btn {
  display: none;
  position: relative;
  width: 30px;
  height: 22px;
  cursor: pointer;
}

.mobile-menu-btn span {
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  border-radius: 1px;
  background: var(--color-gold);
  box-shadow: 0 0 8px var(--color-gold-dim);
  transition: transform 0.25s ease, opacity 0.25s ease,
              top 0.25s ease, bottom 0.25s ease,
              background 0.25s ease, box-shadow 0.25s ease;
}

.mobile-menu-btn span:nth-child(1) { top: 0; }
.mobile-menu-btn span:nth-child(2) { top: 50%; transform: translateY(-50%); }
.mobile-menu-btn span:nth-child(3) { bottom: 0; }

.mobile-menu-btn:hover span {
  background: var(--color-gold-bright);
  box-shadow: var(--glow-gold-intense);
}

.mobile-menu-btn.is-open span {
  background: var(--color-crimson-bright);
  box-shadow: var(--glow-crimson);
}
.mobile-menu-btn.is-open span:nth-child(1) { top: 50%; transform: translateY(-50%) rotate(45deg); }
.mobile-menu-btn.is-open span:nth-child(2) { opacity: 0; }
.mobile-menu-btn.is-open span:nth-child(3) { bottom: auto; top: 50%; transform: translateY(-50%) rotate(-45deg); }

.mobile-menu {
  display: none;
  flex-direction: column;
  padding-inline: var(--page-padding-inline);
  padding-bottom: 1rem;
  gap: 0.1rem;
  background: linear-gradient(
    to bottom,
    rgba(8, 8, 16, 0.99),
    rgba(13, 13, 22, 0.96)
  );
  border-bottom: 1px solid rgba(168, 168, 192, 0.2);
}

.mobile-menu a {
  font-family: var(--font-display);
  font-size: 2rem;
  letter-spacing: 0.14em;
  padding: 0.6rem 0;
  color: var(--color-nav);
  border-bottom: 1px solid rgba(168, 168, 192, 0.1);
  text-align: center;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.mobile-menu a:hover {
  color: var(--color-crimson-bright);
  border-color: var(--color-crimson-dim);
}

/* Mobile breakpoint */
@media (max-width: 840px) {
  .nav {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
  }

  .nav-logo {
    margin-right: 0;
    justify-content: center;
  }

  .nav-left,
  .nav-right { display: none; }

  .mobile-menu-btn {
    display: block;
    position: absolute;
    top: 50%;
    right: var(--page-padding-inline);
    transform: translateY(-50%);
    margin: 0;
  }

  .mobile-menu.is-open { display: flex; }
}

@media (max-width: 600px) {
  :root { --page-padding-inline: 1.25rem; }
}

/* ========== 8. PAGE STRUCTURE ========== */

.page-header { margin-bottom: var(--space-xl); }
.page-header h1 { margin-bottom: var(--space-sm); }
.page-header p { max-width: var(--content-max-width); }
.page-body { max-width: var(--content-max-width); margin-inline: auto; }

/* Section dividers — horizontal rule with ice-blue glow */
.section-divider {
  border: none;
  height: 1px;
  background: linear-gradient(
    to right,
    transparent 0%,
    rgba(168, 168, 192, 0.35) 12%,
    rgba(var(--crimson-bright-rgb), 0.75) 50%,
    rgba(168, 168, 192, 0.35) 88%,
    transparent 100%
  );
  box-shadow:
    0 0 8px rgba(var(--crimson-bright-rgb), 0.5),
    0 0 20px rgba(var(--crimson-bright-rgb), 0.2);
  margin-block: var(--space-2xl);
}

/* ========== 9. FOOTER ========== */
.footer {
  padding-block: var(--space-xl);
  text-align: center;
  font-size: 1.5rem;
  color: var(--color-text-muted);

  /* Structural border — platinum line with ice-blue underglow */
  border-top: 1px solid rgba(168, 168, 192, 0.45);
  box-shadow:
    inset 0 1px 0 rgba(var(--crimson-bright-rgb), 0.35),
    inset 0 2px 0 rgba(168, 168, 192, 0.12);

  margin-top: var(--space-3xl);

  /* Layered background — noticeably different from page body */
  background:
    linear-gradient(
      to top,
      rgba(4, 4, 12, 0.98) 0%,
      rgba(8, 10, 24, 0.85) 40%,
      rgba(8, 8, 20, 0.6) 100%
    ),
    radial-gradient(ellipse at 50% 100%, rgba(var(--crimson-rgb), 0.08) 0%, transparent 60%);
}

.footer p {
  margin: 0.2rem 0;
  font-family: var(--font-display);
  letter-spacing: 0.12em;
  /* text-transform: lowercase; */ /* Removed to preserve text as written */
}

/* Web developer credit link — ice-blue, visible */
.footer a {
  color: var(--color-crimson-bright);
  opacity: 0.75;
  transition: color 0.2s ease, opacity 0.2s ease, text-shadow 0.2s ease;
}

.footer a:hover {
  color: var(--color-gold-bright);
  opacity: 1;
  text-shadow: var(--glow-gold);
}

/* ========== 10. BACK TO TOP ========== */

/* 
  translateY(15px) on base state is REQUIRED.
  backtotop.js adds .is-visible which sets translateY(0).
  Removing the base transform breaks the JS visibility logic.
*/
.back-to-top {
  position: fixed;
  right: 1.5rem;
  bottom: 2rem;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-soft);
  border: 1px solid var(--color-gold-dark);
  background: linear-gradient(
    135deg,
    rgba(168, 168, 192, 0.12) 0%,
    rgba(8, 8, 20, 0.95) 100%
  );
  color: var(--color-gold);
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-carved), var(--shadow-deep);
  opacity: 0;
  pointer-events: none;
  transform: translateY(15px);
  transition: opacity 0.3s ease, transform 0.3s ease,
              border-color 0.2s ease, box-shadow 0.2s ease,
              background 0.2s ease, color 0.2s ease;
  z-index: 40;
}

.back-to-top:hover {
  border-color: var(--color-crimson);
  background: linear-gradient(
    135deg,
    rgba(var(--crimson-rgb), 0.25) 0%,
    rgba(8, 8, 20, 0.98) 100%
  );
  box-shadow: var(--glow-crimson-intense), var(--shadow-deep);
  color: var(--color-crimson-bright);
}

.back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

/* ========== 11. FADE INTRO ========== */

body.fade-intro::before {
  content: "";
  position: fixed;
  inset: 0;
  background: #000;
  z-index: 100;
  pointer-events: none;
  animation: fadeIntro 1.0s ease-out forwards;
}

@keyframes fadeIntro {
  0%   { opacity: 1; }
  50%  { opacity: 0.6; }
  100% { opacity: 0; }
}

/* ========== 12. REDUCED MOTION ========== */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  body.fade-intro::before { animation: none; opacity: 0; }
  #signal-grid-canvas { display: none; }
}

/* ========== 13. MISC ========== */

#visual-box { display: none !important; }