/* ═══════════════════════════════════════════════════════════════
   HEXNOVISION — style.css
   Golden Ratio φ = 1.618  |  Fibonacci spacing  |  Fira Code
   ═══════════════════════════════════════════════════════════════ */

/* ── DESIGN TOKENS ──────────────────────────────────────────── */
:root {
  --phi:       1.618;
  --phi-inv:   0.618;

  /* Colors */
  --black:     #000000;
  --white:     #ffffff;
  --w60:       rgba(255,255,255,0.60);
  --w30:       rgba(255,255,255,0.30);
  --w12:       rgba(255,255,255,0.12);
  --w06:       rgba(255,255,255,0.06);
  --w03:       rgba(255,255,255,0.03);
  --acid:      #c8ff00;
  --acid-dim:  rgba(200,255,0,0.20);
  --acid-glow: rgba(200,255,0,0.08);

  /* Fibonacci spacing: 8 13 21 34 55 89 144 233 */
  --s1: 8px;
  --s2: 13px;
  --s3: 21px;
  --s4: 34px;
  --s5: 55px;
  --s6: 89px;
  --s7: 144px;
  --s8: 233px;

  /* Type scale (Fibonacci × base) */
  --t-xs:  10px;
  --t-sm:  13px;
  --t-md:  21px;
  --t-lg:  34px;
  --t-xl:  55px;
  --t-2xl: 89px;
  --t-3xl: 144px;

  font-family: 'Fira Code', monospace;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--black);
  color: var(--white);
  overflow-x: hidden;
  cursor: crosshair;
}

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

/* ── PERSISTENT OVERLAYS ────────────────────────────────────── */
.scanlines {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  background: repeating-linear-gradient(
    0deg,
    transparent 0px,
    transparent 2px,
    rgba(0,0,0,0.05) 2px,
    rgba(0,0,0,0.05) 4px
  );
}

.grid-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background-image:
    linear-gradient(var(--w03) 1px, transparent 1px),
    linear-gradient(90deg, var(--w03) 1px, transparent 1px);
  background-size: 55px 55px;
}

/* ── NAVIGATION ─────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--s3) var(--s5);
  transition: background 0.4s ease, border-bottom 0.4s ease;
}

.nav.scrolled {
  background: rgba(0,0,0,0.85);
  border-bottom: 1px solid var(--w06);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.nav-brand {
  font-size: var(--t-xs);
  font-weight: 700;
  letter-spacing: 0.35em;
  color: var(--white);
}

.nav-links { display: flex; gap: var(--s4); }

.nav-link {
  font-size: var(--t-xs);
  letter-spacing: 0.25em;
  color: var(--w60);
  transition: color 0.25s;
}

.nav-link:hover { color: var(--acid); }

/* ── BLINKING CURSOR ────────────────────────────────────────── */
.blink {
  animation: blink 1s step-end infinite;
  color: var(--acid);
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

/* ── HERO ───────────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--s7) var(--s5);
  overflow: hidden;
  z-index: 2;
}

/* Coordinate badge */
.hero-coords {
  position: absolute;
  top: var(--s5);
  right: var(--s5);
  font-size: var(--t-xs);
  letter-spacing: 0.18em;
  color: var(--w30);
}

/* ── RADAR RINGS ────────────────────────────────────────────── */
.hero-bg {
  position: absolute;
  right: -5vw;
  top: 50%;
  transform: translateY(-50%);
  width: 55vw;
  height: 55vw;
  pointer-events: none;
}

.hero-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 1px solid;
}

.hero-ring--a {
  width: 100%;
  height: 100%;
  border-color: var(--w06);
}

.hero-ring--b {
  width: 61.8%;
  height: 61.8%;
  border-color: var(--w12);
}

.hero-ring--c {
  width: 38.2%;
  height: 38.2%;
  border-color: var(--w06);
  animation: ring-pulse 4s ease-in-out infinite;
}

@keyframes ring-pulse {
  0%, 100% { border-color: var(--w06); }
  50%       { border-color: var(--acid-dim); }
}

/* Radar sweep */
.hero-sweep {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 50%;
  height: 1px;
  transform-origin: left center;
  background: linear-gradient(90deg, var(--acid-dim), transparent);
  animation: sweep 6s linear infinite;
}

@keyframes sweep {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* Reticle crosshair */
.hero-reticle {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 21px;
  height: 21px;
}

.reticle-h, .reticle-v {
  position: absolute;
  background: var(--w30);
}

.reticle-h {
  width: 100%;
  height: 1px;
  top: 50%;
  transform: translateY(-50%);
}

.reticle-v {
  height: 100%;
  width: 1px;
  left: 50%;
  transform: translateX(-50%);
}

.reticle-dot {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--acid);
  animation: ring-pulse 2s ease-in-out infinite;
}

/* ── HERO CONTENT ───────────────────────────────────────────── */
.hero-content {
  position: relative;
  z-index: 3;
  max-width: 61.8vw;
}

.hero-eyebrow {
  font-size: var(--t-xs);
  color: var(--acid);
  letter-spacing: 0.35em;
  margin-bottom: var(--s4);
}

.hero-title {
  position: relative;
  line-height: 0.88;
  margin-bottom: var(--s5);
  font-size: clamp(var(--t-2xl), 12.5vw, var(--t-3xl));
  font-weight: 700;
  letter-spacing: -0.025em;
  user-select: none;
}

.hero-title-text {
  display: block;
  position: relative;
  z-index: 2;
}

.hero-title-echo {
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  color: transparent;
  -webkit-text-stroke: 1px var(--w12);
  transform: translate(4px, 4px);
  pointer-events: none;
}

.hero-sub {
  font-size: var(--t-sm);
  color: var(--w60);
  letter-spacing: 0.22em;
  display: flex;
  align-items: center;
  gap: 3px;
}

/* ── HERO STATS ─────────────────────────────────────────────── */
.hero-stats {
  position: absolute;
  bottom: var(--s6);
  right: var(--s5);
  display: flex;
  flex-direction: column;
  gap: var(--s3);
  text-align: right;
}

.stat { display: flex; flex-direction: column; gap: 2px; }

.stat-label {
  font-size: var(--t-xs);
  color: var(--w30);
  letter-spacing: 0.25em;
}

.stat-val {
  font-size: var(--t-sm);
  font-weight: 600;
  letter-spacing: 0.12em;
}

.pulse {
  color: var(--acid);
}

.pulse::before {
  content: '● ';
  animation: dot-pulse 2s ease-in-out infinite;
}

@keyframes dot-pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.25; }
}

/* ── SCROLL BEACON ──────────────────────────────────────────── */
.scroll-beacon {
  position: absolute;
  bottom: var(--s5);
  left: var(--s5);
  display: flex;
  align-items: center;
  gap: var(--s3);
  font-size: var(--t-xs);
  letter-spacing: 0.25em;
  color: var(--w30);
}

.beacon-track {
  width: var(--s5);
  height: 1px;
  background: var(--w12);
  position: relative;
  overflow: hidden;
}

.beacon-fill {
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--white);
  animation: beacon-sweep 2s linear infinite;
}

@keyframes beacon-sweep {
  to { left: 100%; }
}

/* ── SECTION HEADER ─────────────────────────────────────────── */
.sec-head {
  display: flex;
  align-items: baseline;
  gap: var(--s4);
  margin-bottom: var(--s6);
  padding-bottom: var(--s3);
  border-bottom: 1px solid var(--w06);
}

.sec-num {
  font-size: var(--t-xs);
  color: var(--acid);
  letter-spacing: 0.35em;
  font-weight: 600;
}

.sec-title {
  font-size: var(--t-sm);
  font-weight: 400;
  letter-spacing: 0.45em;
  color: var(--w30);
}

.sec-rule {
  flex: 1;
  height: 1px;
  background: var(--w06);
}

/* ── WORKS ──────────────────────────────────────────────────── */
.works {
  padding: var(--s7) var(--s5);
  position: relative;
  z-index: 2;
}

.works-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--w06);
}

/* ── CARD ───────────────────────────────────────────────────── */
.card {
  display: flex;
  position: relative;
  background: var(--black);
  overflow: hidden;
  transition: background 0.35s ease;
  cursor: pointer;
}

.card::before {
  content: attr(data-num);
  position: absolute;
  top: var(--s3);
  right: var(--s4);
  font-size: var(--t-xs);
  color: var(--w12);
  letter-spacing: 0.25em;
  z-index: 4;
  transition: color 0.35s;
}

.card:hover { background: var(--w03); }
.card:hover::before { color: var(--acid-dim); }

.card--wide { min-height: 320px; }
.card--half { min-height: 280px; flex: 1; }

.card-pair {
  display: flex;
  gap: 1px;
  background: var(--w06);
}

/* Card content: 61.8% of card width (golden ratio major) */
.card-body {
  flex: 0 0 61.8%;
  padding: var(--s5);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  z-index: 3;
}

.card--half .card-body { flex: 1; padding: var(--s4); }

.card-meta {
  display: flex;
  align-items: center;
  gap: var(--s3);
  margin-bottom: var(--s4);
}

.card-year {
  font-size: var(--t-xs);
  color: var(--w30);
  letter-spacing: 0.22em;
}

.card-cat {
  font-size: var(--t-xs);
  color: var(--acid);
  letter-spacing: 0.22em;
}

.card-title {
  font-size: clamp(var(--t-md), 3.5vw, var(--t-xl));
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 0.95;
  margin-bottom: var(--s3);
  transition: color 0.25s ease;
}

.card--half .card-title {
  font-size: clamp(var(--t-lg), 3vw, var(--t-xl) * 0.8);
}

.card:hover .card-title { color: var(--acid); }

.card-desc {
  font-size: var(--t-sm);
  color: var(--w60);
  line-height: 1.7;
  max-width: 52ch;
  margin-bottom: var(--s4);
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s2);
}

.card-tags span {
  font-size: var(--t-xs);
  color: var(--w30);
  letter-spacing: 0.18em;
  border: 1px solid var(--w12);
  padding: 2px var(--s2);
  transition: border-color 0.25s, color 0.25s;
}

.card:hover .card-tags span {
  border-color: var(--acid-dim);
  color: var(--acid);
}

/* ── CARD VISUALS ───────────────────────────────────────────── */
.card-vis {
  flex: 1;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

/* ── ABOUT ──────────────────────────────────────────────────── */
.about {
  padding: var(--s7) var(--s5);
  position: relative;
  z-index: 2;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Golden ratio: terminal = 61.8%, info panel = 38.2% */
.about-grid {
  display: grid;
  grid-template-columns: 61.8fr 38.2fr;
  gap: var(--s6);
  flex: 1;
  align-items: start;
}

/* ── TERMINAL ───────────────────────────────────────────────── */
.terminal {
  border: 1px solid var(--w12);
}

.term-bar {
  display: flex;
  align-items: center;
  gap: var(--s2);
  padding: var(--s2) var(--s3);
  border-bottom: 1px solid var(--w06);
  background: var(--w03);
}

.term-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--w12);
}

.term-name {
  font-size: var(--t-xs);
  color: var(--w30);
  letter-spacing: 0.18em;
  margin-left: auto;
}

.term-body {
  padding: var(--s4);
  min-height: 320px;
}

.term-row {
  display: flex;
  align-items: center;
  gap: var(--s2);
  font-size: var(--t-sm);
  margin-bottom: var(--s2);
}

.term-prompt { color: var(--acid); }
.term-cmd    { color: var(--white); }

.term-out {
  font-size: var(--t-sm);
  color: var(--w60);
  line-height: 1.85;
  padding-left: var(--s4);
  margin-bottom: var(--s4);
  min-height: 120px;
  white-space: pre-line;
}

/* ── ABOUT META ─────────────────────────────────────────────── */
.about-meta {
  display: flex;
  flex-direction: column;
  gap: var(--s5);
}

.meta-head {
  display: block;
  font-size: var(--t-xs);
  color: var(--acid);
  letter-spacing: 0.35em;
  margin-bottom: var(--s3);
}

.meta-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--s2);
}

.meta-list li {
  font-size: var(--t-sm);
  color: var(--w60);
  letter-spacing: 0.1em;
  padding-left: var(--s3);
  position: relative;
}

.meta-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--w30);
}

.meta-list a {
  color: var(--w60);
  transition: color 0.25s;
}

.meta-list a:hover { color: var(--acid); }

/* ── FOOTER ─────────────────────────────────────────────────── */
.site-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--s5);
  border-top: 1px solid var(--w06);
  margin-top: var(--s7);
  font-size: var(--t-xs);
  color: var(--w30);
  letter-spacing: 0.22em;
}

/* ── REVEAL ANIMATION ───────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(var(--s3));
  transition: opacity 0.9s cubic-bezier(0.16,1,0.3,1),
              transform 0.9s cubic-bezier(0.16,1,0.3,1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger siblings */
.reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal:nth-child(3) { transition-delay: 0.2s; }

/* ── GLITCH KEYFRAMES ───────────────────────────────────────── */
@keyframes glitch-clip {
  0%   { clip-path: inset(12% 0 78% 0); transform: translate(-3px); }
  20%  { clip-path: inset(60% 0 5%  0); transform: translate(3px);  }
  40%  { clip-path: inset(30% 0 50% 0); transform: translate(0);    }
  60%  { clip-path: inset(80% 0 2%  0); transform: translate(-3px); }
  80%  { clip-path: inset(5%  0 85% 0); transform: translate(3px);  }
  100% { clip-path: inset(40% 0 50% 0); transform: translate(0);    }
}

/* ── RESPONSIVE ─────────────────────────────────────────────── */
@media (max-width: 900px) {
  .hero-content { max-width: 100%; }

  .hero-bg {
    width: 80vw;
    height: 80vw;
    right: -30vw;
    opacity: 0.5;
  }

  .hero-stats {
    position: static;
    flex-direction: row;
    justify-content: flex-start;
    gap: var(--s5);
    margin-top: var(--s5);
    text-align: left;
  }

  .stat { flex-direction: row; align-items: center; gap: var(--s2); }

  .card-pair { flex-direction: column; }

  .card--half { min-height: 220px; }

  .card-body { flex: 1; }

  .about-grid { grid-template-columns: 1fr; }

  .site-footer { flex-direction: column; gap: var(--s2); text-align: center; }
}

@media (max-width: 600px) {
  .hero { padding: var(--s7) var(--s3); }
  .works, .about { padding: var(--s6) var(--s3); }

  .card-body { padding: var(--s4) var(--s3); }

  .nav { padding: var(--s3); }
}