/* ============================================================
   L03 Voice Lab — Brutalist Shared Styles
   Applied across all pages (index, audition, submit, result)
   ============================================================ */

/* ---------- FONTS ---------- */
@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;700;900&family=JetBrains+Mono:wght@400;700&family=Playfair+Display:ital,wght@0,900;1,900&family=Orbitron:wght@700&display=swap");

/* ---------- CSS VARIABLES ---------- */
:root {
  --bg1:        #0A0014;
  --bg2:        #0D001A;
  --bg-warm:    #100012;
  --cyan:       #00E5FF;
  --cyan-dim:   rgba(0,229,255,0.10);
  --cyan-mid:   rgba(0,229,255,0.25);
  --cyan-bright: rgba(0,229,255,0.50);
  --warm:       #FF5470;
  --warm-dim:   rgba(255,84,112,0.12);
  --amber:      #FFB800;
  --fg:         #FFFFFF;
  --fg2:        #B0B0CC;
  --dim:        #5A5A7A;
  --mono:       "JetBrains Mono","IBM Plex Mono",monospace;
  --sans:       "Inter","Neue Haas Grotesk",sans-serif;
  --serif:      "Playfair Display","Times New Roman",serif;
  --tech:       "Orbitron",sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg1);
  color: var(--fg);
  font-family: var(--sans);
  overflow-x: hidden;
}

/* Dot-grid background */
body::before {
  content: ""; position: fixed; inset:0; z-index:0; pointer-events:none;
  background-image: radial-gradient(circle, rgba(0,229,255,.05) 1px, transparent 1px);
  background-size: 40px 40px;
}

/* Scanline overlay */
body::after {
  content: ""; position: fixed; inset:0; z-index:9998; pointer-events:none;
  background: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0,0,0,0.05) 2px, rgba(0,0,0,0.05) 4px);
}

/* Noise layer */
.noise {
  position: fixed; inset:0; z-index:9999; pointer-events:none;
  background: 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='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.025'/%3E%3C/svg%3E");
}

/* ---------- UTILITY CLASSES ---------- */
.bg1 { background: var(--bg1); }
.bg2 { background: var(--bg2); }
.bg-warm { background: var(--bg-warm); }

/* ---------- REVEAL ANIMATION ---------- */
.reveal {
  opacity: 0; transform: translateY(20px);
  transition: opacity 0.6s steps(4), transform 0.6s steps(4);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ---------- KEYFRAMES ---------- */
@keyframes ledFlicker {
  0%,100%{opacity:1} 92%{opacity:1} 93%{opacity:.3} 94%{opacity:1} 96%{opacity:.4} 97%{opacity:1}
}
@keyframes warmPulse {
  0%,100%{opacity:.6;box-shadow:0 0 4px rgba(255,84,112,.3)}
  50%{opacity:1;box-shadow:0 0 12px rgba(255,84,112,.6)}
}
@keyframes xPulse {
  0%,100%{opacity:.10} 50%{opacity:.22}
}
@keyframes glitchShift {
  0%{transform:translate(0)} 20%{transform:translate(-2px,1px)}
  40%{transform:translate(2px,-1px)} 60%{transform:translate(-1px,0)}
  80%{transform:translate(1px,0)} 100%{transform:translate(0)}
}
@keyframes dividerShimmer {
  0%,100%{opacity:.25} 50%{opacity:.45}
}

/* ---------- SYS LED ---------- */
.sys-led { animation: ledFlicker 4s infinite; }

/* ---------- WARM DOT ---------- */
.dot-warm {
  width:6px;height:6px;background:var(--warm);
  box-shadow:0 0 8px rgba(255,84,112,.5);
  animation:warmPulse 2s ease-in-out infinite;
  transition: box-shadow 0.2s, background 0.2s;
}

/* ---------- CROSSHAIR ---------- */
.crosshair { animation:xPulse 4s ease-in-out infinite; }
.crosshair:nth-child(2){animation-delay:1s}
.crosshair:nth-child(3){animation-delay:2s}
.crosshair:nth-child(4){animation-delay:3s}

/* ---------- ASCII DIVIDERS ---------- */
.ascii-divider {
  text-align: center; padding: 2rem 0;
  font-family: var(--mono); font-size: 0.55rem;
  letter-spacing: 0.3em; color: var(--dim);
  user-select: none; position: relative; z-index:1; opacity: 0.35;
}
.ascii-divider.wave { color: var(--cyan-dim); letter-spacing: 0.4em; }
.ascii-divider.barcode { color: var(--dim); letter-spacing: 0.15em; }
.ascii-divider.coord { color: var(--dim); letter-spacing: 0.25em; }

/* ---------- TOP BAR ---------- */
.top-bar {
  position: fixed; top:0; left:0; right:0; z-index:100;
  display: grid; grid-template-columns: 1fr auto; align-items: center;
  padding: 1.2rem 2rem; background: rgba(10,0,20,0.92);
  border-bottom: 2px solid var(--cyan-dim); backdrop-filter: blur(8px);
}
.top-bar .brand {
  font-family: var(--tech); font-weight: 700;
  font-size: clamp(0.9rem, 1.4vw, 1.1rem); color: var(--cyan);
  text-shadow: 0 0 12px rgba(0,229,255,0.3);
  letter-spacing: 0.08em; text-decoration: none;
}
.top-bar .meta {
  font-family: var(--mono); font-size: 0.65rem;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--dim); display: flex; align-items: center; gap: 1rem;
}
.top-bar .meta .sys-led {
  display: inline-block; width:6px; height:6px;
  background: var(--cyan); margin-right: 4px;
  box-shadow: 0 0 6px rgba(0,229,255,0.5);
}
.top-bar .meta a { color: var(--fg2); text-decoration: none; transition: color .15s; }
.top-bar .meta a:hover { color: var(--cyan); }

/* ---------- SHARED SECTION STYLES ---------- */
.section { position: relative; z-index:1; max-width: 1100px; margin: 0 auto; padding: 5rem 2rem; }
.sec-label {
  font-family: var(--mono); font-size: 0.65rem; letter-spacing: 0.15em;
  text-transform: uppercase; color: var(--cyan); margin-bottom: 0.5rem;
}
.sec-label .bracket { color: var(--dim); }
.sec-title {
  font-family: var(--sans); font-weight: 900;
  font-size: clamp(2rem, 5vw, 3.5rem); line-height: 1;
  letter-spacing: -0.03em; text-transform: uppercase;
}
.section-divider {
  width: 100%; height: 2px; background: var(--cyan-mid);
  border: none; margin: 2rem 0; animation: dividerShimmer 6s ease-in-out infinite;
}
.section-foot {
  display: flex; align-items: center; gap: 1rem; margin-top: 2rem;
  font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--dim);
}
.section-foot .line { flex:1; height:1px; background:var(--cyan-dim); }

/* ---------- FOOTER ---------- */
.footer { border-top: 2px solid var(--cyan-dim); padding: 2rem; position: relative; z-index:1; }
.footer-inner {
  max-width: 1100px; margin: 0 auto;
  display: grid; grid-template-columns: 1fr auto 1fr;
  align-items: center; font-family: var(--mono); font-size: 0.6rem;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--dim);
}
.footer-inner a { color: var(--fg2); text-decoration: none; transition: color 0.15s; }
.footer-inner a:hover { color: var(--cyan); }
.footer-mid { text-align: center; color: var(--fg2); }

@media (max-width: 700px) {
  .footer-inner { grid-template-columns: 1fr; gap:1rem; text-align:center; }
}

/* ---------- PAGE LAYOUT SHARED ---------- */
.page {
  padding: 140px 2rem 100px;
  max-width: 720px; margin: 0 auto;
  position: relative; z-index:1;
}
.page-label {
  font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.15em;
  color: var(--cyan); text-transform: uppercase; margin-bottom: 0.5rem;
}
.page-title {
  font-family: var(--mono); font-size: 0.65rem; letter-spacing: 0.15em;
  color: var(--cyan); text-transform: uppercase; margin-bottom: 0.5rem;
}
.hr-cyan { width:100%; height:2px; background:var(--cyan-mid); border:none; margin:clamp(0.8rem,2vh,1.5rem) 0; }
.hr-thin { width:100%; height:1px; background:var(--cyan-dim); border:none; margin:clamp(0.4rem,1vh,0.8rem) 0; }