/* =========================================================
   THE SURGICAL ATLAS — ENARE R+ CIRURGIA GERAL
   Design Architecture: Aalto / Dark Luxury / WebGL Canvas Scrubber
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;600;800;900&family=Playfair+Display:ital,wght@0,400;0,600;1,400;1,600&family=Space+Mono:ital,wght@0,400;0,700;1,400&family=Syne:wght@400;500;600;700;800&display=swap');

/* ---- Design Tokens ---- */
:root {
  --bg:        #060608;
  --bg-2:      #0d0c10;
  --bg-card:   #121116;
  --ink:       #f5f2eb;
  --ink-dim:   #9c978f;
  --line:      rgba(245, 242, 235, 0.12);
  --line-gold: rgba(212, 175, 55, 0.28);
  
  --ember:     #DC2626;   /* Arterial Red */
  --ember-2:   #ef4444;   /* Light Red */
  --gold:      #D4AF37;   /* Metallic Gold */
  --gold-glow: #E8CB89;   /* Soft Gold */
  --scalpel:   #00F0FF;   /* Cyan Laser */
  --sand:      #eae5d9;

  --font-display: 'Cinzel', 'Playfair Display', Georgia, serif;
  --font-title:   'Syne', -apple-system, sans-serif;
  --font-mono:    'Space Mono', monospace;
  --font-body:    'Syne', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --maxw: 1400px;
  --pad: clamp(1.25rem, 5vw, 5rem);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; background: var(--bg); }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
::selection { background: var(--ember); color: #fff; }

/* ---- Film Grain Overlay ---- */
.film-grain {
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  pointer-events: none;
  z-index: 998;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
  animation: grain 0.7s steps(6) infinite;
}
@keyframes grain {
  0% { transform: translate(0, 0); }
  20% { transform: translate(-3%, 2%); }
  40% { transform: translate(2%, -3%); }
  60% { transform: translate(-2%, -2%); }
  80% { transform: translate(3%, 1%); }
  100% { transform: translate(0, 0); }
}

/* =========================================================
   Preloader
   ========================================================= */
.preloader {
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  transition: opacity 0.8s var(--ease), visibility 0.8s;
}
.preloader.done { opacity: 0; visibility: hidden; pointer-events: none; }
.preloader__mark {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.28em;
  font-size: clamp(0.85rem, 2vw, 1.1rem);
  text-transform: uppercase;
  color: var(--gold-glow);
  padding-left: 0.28em;
}
.preloader__sub {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  color: var(--ink-dim);
  text-transform: uppercase;
}
.preloader__bar {
  width: min(280px, 65vw);
  height: 2px;
  background: var(--line);
  position: relative;
  overflow: hidden;
  border-radius: 2px;
}
.preloader__bar span {
  position: absolute;
  inset: 0;
  transform-origin: left;
  transform: scaleX(0);
  background: linear-gradient(90deg, var(--ember), var(--gold-glow));
  transition: transform 0.2s linear;
}
.preloader__pct {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

/* =========================================================
   Top Navigation
   ========================================================= */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: clamp(0.85rem, 2vw, 1.35rem) var(--pad);
  color: #fff;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(6, 6, 8, 0.75);
  border-bottom: 1px solid var(--line);
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease);
}
.nav.past-hero {
  background: rgba(6, 6, 8, 0.92);
  border-bottom-color: var(--line-gold);
}
.nav__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.15em;
  font-size: 1rem;
}
.nav__brand-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ember);
  box-shadow: 0 0 12px var(--ember);
  animation: pulseDot 2s infinite;
}
@keyframes pulseDot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.3); opacity: 0.7; }
}
.nav__right {
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 3vw, 2.5rem);
}
.nav__links {
  display: flex;
  gap: clamp(1.25rem, 2.5vw, 2.5rem);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.nav__links a {
  position: relative;
  color: var(--sand);
  opacity: 0.85;
  transition: opacity .3s, color .3s;
}
.nav__links a:hover { opacity: 1; color: var(--gold-glow); }
.nav__links a::after {
  content: '';
  position: absolute; left: 0; bottom: -4px;
  width: 100%; height: 1px; background: var(--gold);
  transform: scaleX(0); transform-origin: right;
  transition: transform .4s var(--ease);
}
.nav__links a:hover::after { transform: scaleX(1); transform-origin: left; }

.nav__cta {
  display: inline-flex; align-items: center; gap: 0.55em;
  background: linear-gradient(135deg, var(--ember), #b91c1c);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.72rem; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  white-space: nowrap;
  padding: 0.65em 1.25em;
  border-radius: 999px;
  box-shadow: 0 4px 20px rgba(220, 38, 38, 0.4);
  transition: transform .3s var(--ease), background .3s var(--ease), box-shadow .3s var(--ease);
}
.nav__cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(220, 38, 38, 0.6);
}

.nav__toggle {
  display: none;
  width: 40px; height: 40px;
  flex-direction: column; justify-content: center; align-items: center; gap: 5px;
  background: none; border: 0; padding: 0; cursor: pointer;
}
.nav__toggle span {
  display: block; width: 22px; height: 2px;
  background: var(--gold); border-radius: 2px;
  transition: transform .3s var(--ease), opacity .3s var(--ease);
}
.nav.menu-open .nav__toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav.menu-open .nav__toggle span:nth-child(2) { opacity: 0; }
.nav.menu-open .nav__toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 820px) {
  .nav__toggle { display: flex; }
  .nav__links {
    position: fixed;
    top: calc(env(safe-area-inset-top, 0px) + 4.2rem);
    left: var(--pad); right: var(--pad);
    flex-direction: column;
    gap: 0;
    padding: 0.75rem;
    background: rgba(13, 12, 16, 0.98);
    border: 1px solid var(--line-gold);
    border-radius: 12px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(16px);
    opacity: 0;
    transform: translateY(-10px);
    pointer-events: none;
    transition: opacity .35s var(--ease), transform .35s var(--ease);
  }
  .nav__links a {
    display: block;
    padding: 0.85rem 1rem;
    border-radius: 6px;
  }
  .nav__links a:hover { background: rgba(212, 175, 55, 0.12); }
  .nav.menu-open .nav__links { opacity: 1; transform: none; pointer-events: auto; }
}

/* =========================================================
   Hero — Canvas Frame Sequence Scrubber
   ========================================================= */
.hero {
  position: relative;
  height: 680vh; /* Scrubber sequence duration */
  background: var(--bg);
}
.hero__sticky {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: hidden;
}
.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}
.hero__sticky::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(120% 80% at 50% 42%, transparent 40%, rgba(6,6,8,0.7) 100%),
    linear-gradient(to bottom, rgba(6,6,8,0.4) 0%, transparent 25%, transparent 60%, rgba(6,6,8,0.95) 100%);
}

.hero__copy {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  pointer-events: none;
  padding: 0 var(--pad);
}
.hero__eyebrow {
  font-family: var(--font-mono);
  font-size: clamp(0.68rem, 1.4vw, 0.82rem);
  letter-spacing: 0.38em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: clamp(1rem, 2.5vh, 1.8rem);
  opacity: 0;
  transform: translateY(16px);
  animation: fadeUp 1s var(--ease) 0.6s forwards;
  padding-left: 0.38em;
}

.hero__tagline {
  margin: 0;
  opacity: 0;
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: 0.04em;
  font-size: clamp(2rem, 5.8vw, 5.2rem);
  display: flex;
  flex-direction: column;
  gap: 0.15em;
  text-transform: uppercase;
  text-shadow: 0 4px 50px rgba(0, 0, 0, 0.8), 0 0 30px rgba(220, 38, 38, 0.3);
}
.hero__tagline .tl { display: block; color: #fff; }
.hero__tagline .tl-right {
  font-family: 'Playfair Display', serif;
  font-style: italic;
  font-weight: 400;
  color: var(--gold-glow);
  text-transform: lowercase;
  letter-spacing: 0.02em;
}
.hero__tagline .wd { display: inline-block; white-space: nowrap; }
.hero__tagline .ch {
  display: inline-block;
  white-space: pre;
  opacity: 0;
  will-change: transform, opacity;
}

.hero__copy2 { opacity: 0; visibility: hidden; }
.hero__title2 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.06em;
  line-height: 1.18;
  margin: 1rem 0 0;
  font-size: clamp(1.6rem, 4.2vw, 3.5rem);
  color: var(--sand);
  text-shadow: 0 4px 40px rgba(0,0,0,0.8);
}
.hero__title2 span {
  font-family: 'Playfair Display', serif;
  font-style: italic;
  font-weight: 400;
  color: var(--gold);
}

.hero__scroll {
  position: absolute;
  left: 50%;
  bottom: clamp(1.5rem, 4vh, 2.75rem);
  transform: translateX(-50%);
  z-index: 4;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  padding-left: 0.3em;
  text-transform: uppercase;
  color: var(--gold);
  opacity: 0;
  animation: scrollCue 1s var(--ease) 1.2s forwards;
}
@keyframes scrollCue {
  from { opacity: 0; transform: translate(-50%, 16px); }
  to   { opacity: 1; transform: translate(-50%, 0); }
}
.hero__scroll .track {
  width: 1px; height: 46px;
  background: var(--line-gold);
  position: relative; overflow: hidden;
}
.hero__scroll .track::after {
  content: '';
  position: absolute; left: 0; top: 0;
  width: 100%; height: 40%;
  background: linear-gradient(var(--ember), transparent);
  animation: scrollPulse 2s var(--ease) infinite;
}
@keyframes scrollPulse {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(250%); }
}

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

/* =========================================================
   Section Foundations
   ========================================================= */
.section {
  position: relative;
  z-index: 5;
  background: var(--bg);
  padding: clamp(5rem, 12vh, 10rem) var(--pad);
}
.wrap { max-width: var(--maxw); margin: 0 auto; }
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--gold);
  display: inline-block;
  margin-bottom: 0.5rem;
}
.h2 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.06;
  font-size: clamp(2rem, 5.5vw, 4.2rem);
  margin: 0.75rem 0 0;
  text-transform: uppercase;
}
.h2 span {
  font-family: 'Playfair Display', serif;
  font-style: italic;
  font-weight: 400;
  color: var(--gold-glow);
  text-transform: lowercase;
}

/* Reveal-on-scroll utility */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

.words-reveal .w {
  display: inline-block;
  opacity: 0;
  transform: translateY(0.4em);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}
.words-reveal.in .w { opacity: 1; transform: none; }

/* ---- Statement ---- */
.statement { }
.statement::before {
  content: '';
  position: absolute;
  left: 0; right: 0;
  top: clamp(-160px, -14vh, -110px);
  height: clamp(110px, 14vh, 160px);
  background: linear-gradient(to bottom, transparent, var(--bg));
  pointer-events: none;
}
.statement__grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(2rem, 6vw, 6rem);
  align-items: end;
}
.statement__big {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.7rem, 3.4vw, 2.9rem);
  line-height: 1.28;
  letter-spacing: 0.01em;
  margin: 0;
}
.statement__big em {
  font-family: 'Playfair Display', serif;
  font-style: italic;
  color: var(--gold);
}
.statement__aside {
  color: var(--ink-dim);
  font-size: 1.05rem;
  line-height: 1.75;
}
@media (max-width: 860px){ .statement__grid { grid-template-columns: 1fr; } }

/* =========================================================
   Matriz de Módulos (GSAP Sticky Stacking Cards)
   ========================================================= */
.svc-scroll {
  position: relative;
  background: var(--bg);
}
.svc-scroll__intro {
  text-align: center;
  padding: clamp(4rem, 10vh, 7rem) var(--pad) clamp(1.5rem, 3vh, 2.5rem);
}

.svc-stack { position: relative; }
.svc-panel {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(1rem, 4vh, 3rem) var(--pad);
}
.svc-panel__card {
  position: relative;
  width: min(92vw, 36rem);
  max-height: 84vh;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  border: 1px solid var(--line-gold);
  border-radius: 18px;
  background: var(--bg-card);
  box-shadow: 0 40px 120px rgba(0, 0, 0, 0.8), 0 0 40px rgba(212, 175, 55, 0.08);
  will-change: transform, filter;
  transition: border-color 0.3s var(--ease);
}
.svc-panel__card:hover {
  border-color: var(--gold);
}
.svc-panel__media { position: absolute; inset: 0; }
.svc-panel__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: contrast(1.08) brightness(0.75);
  transition: transform 0.6s var(--ease);
}
.svc-panel__card:hover .svc-panel__media img {
  transform: scale(1.04);
}
.svc-panel__card::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(6,6,8,0.96) 10%, rgba(6,6,8,0.5) 45%, transparent 75%);
  pointer-events: none;
}
.svc-panel__label {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  z-index: 2;
  text-align: center;
  padding: clamp(1.5rem, 4vw, 2.75rem);
}
.svc-panel__no {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem; letter-spacing: 0.18em;
  color: var(--gold);
  padding: 0.3em 0.85em; margin-bottom: 0.8rem;
  border: 1px solid var(--line-gold);
  background: rgba(212, 175, 55, 0.12);
  border-radius: 999px;
  font-weight: 700;
}
.svc-panel__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.6rem, 3.8vw, 2.5rem);
  line-height: 1.1;
  margin: 0 0 0.6rem;
  text-transform: uppercase;
  color: #fff;
}
.svc-panel__desc {
  color: var(--sand);
  font-size: clamp(0.88rem, 1.3vw, 0.98rem);
  line-height: 1.55;
  max-width: 38ch;
  margin: 0 auto 1.25rem;
}
.svc-panel__btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold-glow);
  border: 1px solid var(--gold);
  background: rgba(212, 175, 55, 0.15);
  padding: 0.65em 1.4em;
  border-radius: 999px;
  font-weight: 700;
  transition: all 0.3s var(--ease);
}
.svc-panel__btn:hover {
  background: var(--gold);
  color: var(--bg);
  box-shadow: 0 0 25px rgba(212, 175, 55, 0.5);
}

.svc-stack:not(.gsap-ready) .svc-panel__card { opacity: 1 !important; transform: none !important; }

/* =========================================================
   Grandes Plataformas Grid
   ========================================================= */
.platforms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: clamp(1.5rem, 3vw, 2.5rem);
  margin-top: 3.5rem;
}
.platform-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: clamp(1.75rem, 3vw, 2.5rem);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.platform-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0;
  transition: opacity 0.4s;
}
.platform-card:hover {
  transform: translateY(-6px);
  border-color: var(--line-gold);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8), 0 0 30px rgba(212, 175, 55, 0.12);
}
.platform-card:hover::before { opacity: 1; }

.platform-badge {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  border: 1px solid var(--line-gold);
  background: rgba(212, 175, 55, 0.1);
  padding: 0.25em 0.7em;
  border-radius: 999px;
  font-weight: 700;
}
.platform-card__title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin: 1.25rem 0 0.5rem;
  text-transform: uppercase;
  color: #fff;
}
.platform-card__desc {
  color: var(--ink-dim);
  font-size: 0.92rem;
  line-height: 1.6;
  margin-bottom: 2rem;
}
.platform-card__footer {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold-glow);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--line);
  padding-top: 1.25rem;
}

/* =========================================================
   Atlas Especializados & Niche Grid
   ========================================================= */
.sub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
  margin-top: 3rem;
}
.sub-card {
  background: rgba(18, 17, 22, 0.6);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all 0.3s var(--ease);
}
.sub-card:hover {
  transform: translateX(6px);
  border-color: var(--gold);
  background: rgba(212, 175, 55, 0.05);
}
.sub-card__cat {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-dim);
  display: block;
  margin-bottom: 0.25rem;
}
.sub-card__title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--sand);
}
.sub-card__arrow {
  color: var(--gold);
  font-size: 1.1rem;
  transition: transform 0.3s;
}
.sub-card:hover .sub-card__arrow {
  transform: translateX(4px);
}

/* =========================================================
   Telemetria Estatística
   ========================================================= */
.telemetry-box {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3.5rem;
}
.telemetry-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 2rem;
}
.telemetry-card__val {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--gold);
  display: block;
  margin-bottom: 0.5rem;
}
.telemetry-card__title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
  color: #fff;
}
.telemetry-card__text {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.6;
  color: var(--ink-dim);
}

/* =========================================================
   Footer
   ========================================================= */
.footer {
  position: relative;
  z-index: 5;
  background: #040405;
  border-top: 1px solid var(--line-gold);
  padding: 4rem var(--pad);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-dim);
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
.footer__top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}
.footer__links {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.footer__links a:hover { color: var(--gold); }
.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  border-top: 1px solid var(--line);
  padding-top: 2rem;
  letter-spacing: 0.08em;
}

/* =========================================================
   Audio Player Controls & Equalizer Animations
   ========================================================= */
.nav__sound-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(20, 18, 24, 0.75);
  border: 1px solid var(--line-gold);
  color: var(--sand);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.6em 1.15em;
  border-radius: 999px;
  cursor: pointer;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: all 0.3s var(--ease);
  outline: none;
}

.nav__sound-btn:hover {
  background: rgba(35, 30, 42, 0.95);
  border-color: var(--gold);
  box-shadow: 0 0 16px rgba(212, 175, 55, 0.35);
  color: #fff;
  transform: translateY(-1px);
}

.sound-bars {
  display: inline-flex;
  align-items: flex-end;
  gap: 2.5px;
  height: 12px;
  width: 14px;
  position: relative;
}

.sound-bars .bar {
  width: 2px;
  background: var(--gold);
  border-radius: 1px;
  transition: height 0.25s ease, background-color 0.3s ease;
  height: 3px;
}

.nav__sound-btn.is-playing .sound-bars .bar {
  animation: soundWave 1.2s ease-in-out infinite alternate;
}

.nav__sound-btn.is-playing .sound-bars .bar-1 { height: 10px; animation-delay: 0.0s; }
.nav__sound-btn.is-playing .sound-bars .bar-2 { height: 5px;  animation-delay: 0.3s; }
.nav__sound-btn.is-playing .sound-bars .bar-3 { height: 12px; animation-delay: 0.15s; }
.nav__sound-btn.is-playing .sound-bars .bar-4 { height: 7px;  animation-delay: 0.45s; }

.nav__sound-btn.is-muted .sound-bars .bar {
  height: 3px !important;
  background: var(--ink-dim);
  animation: none !important;
}

.nav__sound-btn.is-muted .sound-text {
  color: var(--ink-dim);
}

@keyframes soundWave {
  0%   { height: 3px; }
  50%  { height: 12px; }
  100% { height: 4px; }
}

/* Floating Audio HUD */
.audio-hud {
  position: fixed;
  bottom: 24px;
  left: 24px;
  z-index: 999;
  transition: opacity 0.4s ease, transform 0.4s var(--ease);
}

.audio-hud__btn {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(12, 11, 16, 0.88);
  border: 1px solid var(--line-gold);
  padding: 8px 16px 8px 12px;
  border-radius: 999px;
  color: var(--sand);
  cursor: pointer;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6), 0 0 14px rgba(212, 175, 55, 0.18);
  transition: all 0.3s var(--ease);
  outline: none;
}

.audio-hud__btn:hover {
  background: rgba(22, 20, 28, 0.96);
  border-color: var(--gold);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.8), 0 0 22px rgba(212, 175, 55, 0.4);
  transform: translateY(-2px);
}

.audio-hud__eq {
  display: flex;
  align-items: flex-end;
  gap: 2.5px;
  height: 16px;
  width: 14px;
}

.audio-hud__eq span {
  width: 2px;
  height: 3px;
  background: var(--gold);
  border-radius: 1px;
  transition: height 0.25s ease;
}

.audio-hud.is-playing .audio-hud__eq span {
  animation: soundWaveHUD 1s ease-in-out infinite alternate;
}
.audio-hud.is-playing .audio-hud__eq span:nth-child(1) { animation-delay: 0.1s; height: 10px; }
.audio-hud.is-playing .audio-hud__eq span:nth-child(2) { animation-delay: 0.35s; height: 16px; }
.audio-hud.is-playing .audio-hud__eq span:nth-child(3) { animation-delay: 0.2s; height: 7px; }
.audio-hud.is-playing .audio-hud__eq span:nth-child(4) { animation-delay: 0.45s; height: 13px; }

.audio-hud.is-muted .audio-hud__eq span {
  height: 3px !important;
  background: var(--ink-dim);
  animation: none !important;
}

.audio-hud__info {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
}

.audio-hud__title {
  font-family: var(--font-display);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: #fff;
  white-space: nowrap;
}

.audio-hud__status {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.12em;
  color: var(--gold-glow);
  text-transform: uppercase;
}

.audio-hud.is-muted .audio-hud__status {
  color: var(--ink-dim);
}

@keyframes soundWaveHUD {
  0%   { height: 3px; }
  50%  { height: 16px; }
  100% { height: 6px; }
}

@media (max-width: 640px) {
  .audio-hud {
    bottom: 16px;
    left: 16px;
    transform: scale(0.92);
    transform-origin: bottom left;
  }
}