/* ============================================================
   DOUGLAS HILLER — UX PORTFOLIO
   Tron / Neon Grid Aesthetic | Late 80s Cyberpunk
   ============================================================ */

/* ── Google Fonts ─────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;600;700;800;900&family=Share+Tech+Mono&family=Inter:wght@300;400;500;600&display=swap');

/* ── CSS Custom Properties ───────────────────────────────── */
:root {
  --bg-primary:    #0a0a0f;
  --bg-secondary:  #0d0d1a;
  --bg-card:       #0f0f1e;
  --bg-elevated:   #141428;

  --cyan:          #00f5ff;
  --cyan-dim:      rgba(0, 245, 255, 0.15);
  --cyan-glow:     rgba(0, 245, 255, 0.6);
  --magenta:       #ff00ff;
  --magenta-dim:   rgba(255, 0, 255, 0.15);
  --magenta-glow:  rgba(255, 0, 255, 0.6);
  --amber:         #ffaa00;
  --green:         #39ff14;

  --text-primary:  #e8f4ff;
  --text-secondary:#8bacc8;
  --text-muted:    #4a6080;

  --border-cyan:   rgba(0, 245, 255, 0.3);
  --border-magenta:rgba(255, 0, 255, 0.3);

  --font-display:  'Orbitron', 'Share Tech Mono', monospace;
  --font-mono:     'Share Tech Mono', monospace;
  --font-body:     'Inter', sans-serif;

  --grid-size:     40px;
  --transition:    0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast:0.15s cubic-bezier(0.4, 0, 0.2, 1);

  --nav-h:         70px;
  --section-pad:   clamp(60px, 10vw, 120px);
  --card-radius:   4px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.7;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* ── Animated Grid Background ────────────────────────────── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(rgba(0, 245, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 245, 255, 0.04) 1px, transparent 1px);
  background-size: var(--grid-size) var(--grid-size);
  background-position: center center;
  animation: gridDrift 20s linear infinite;
  pointer-events: none;
}

/* Secondary grid — larger cells, magenta tint */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(rgba(255, 0, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 0, 255, 0.02) 1px, transparent 1px);
  background-size: 160px 160px;
  animation: gridDrift 40s linear infinite reverse;
  pointer-events: none;
}

@keyframes gridDrift {
  0%   { background-position: 0 0; }
  100% { background-position: var(--grid-size) var(--grid-size); }
}

/* ── Scanline Overlay ────────────────────────────────────── */
.scanlines {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.08) 2px,
    rgba(0, 0, 0, 0.08) 4px
  );
}

/* ── Page Wrapper ────────────────────────────────────────── */
.page-wrapper {
  position: relative;
  z-index: 2;
}

/* ── Typography ──────────────────────────────────────────── */
h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.05em;
  line-height: 1.2;
}

h1 { font-size: clamp(2rem, 5vw, 4rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.5rem); }

p { color: var(--text-secondary); max-width: 65ch; }

a {
  color: var(--cyan);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover { color: #fff; }

/* ── Navigation ──────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  z-index: 100;
  display: flex;
  align-items: center;
  padding: 0 clamp(20px, 5vw, 60px);
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-cyan);
}

/* Corner bracket HUD details */
.nav::before,
.nav::after {
  content: '';
  position: absolute;
  width: 12px;
  height: 12px;
  border-color: var(--cyan);
  border-style: solid;
  bottom: -1px;
}
.nav::before { left: 40px; border-width: 0 0 1px 1px; }
.nav::after  { right: 40px; border-width: 0 1px 1px 0; }

.nav__logo {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 800;
  color: var(--cyan);
  letter-spacing: 0.2em;
  text-shadow: 0 0 16px var(--cyan-glow);
  flex: 0 0 auto;
  text-transform: uppercase;
  transition: text-shadow var(--transition);
}
.nav__logo:hover {
  color: #fff;
  text-shadow: 0 0 24px var(--cyan), 0 0 48px var(--cyan-glow);
}

.nav__links {
  display: flex;
  gap: clamp(20px, 3vw, 48px);
  margin-left: auto;
  list-style: none;
  align-items: center;
}

.nav__links a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  color: var(--text-secondary);
  text-transform: uppercase;
  transition: color var(--transition-fast), text-shadow var(--transition-fast);
  position: relative;
}
.nav__links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--cyan);
  box-shadow: 0 0 6px var(--cyan);
  transition: width var(--transition);
}
.nav__links a:hover {
  color: var(--cyan);
  text-shadow: 0 0 10px var(--cyan-glow);
}
.nav__links a:hover::after { width: 100%; }

.nav__cta {
  margin-left: clamp(20px, 3vw, 48px);
  padding: 8px 20px;
  border: 1px solid var(--cyan);
  border-radius: var(--card-radius);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--cyan) !important;
  text-transform: uppercase;
  box-shadow: 0 0 12px var(--cyan-dim), inset 0 0 12px var(--cyan-dim);
  transition: all var(--transition) !important;
}
.nav__cta:hover {
  background: var(--cyan-dim);
  box-shadow: 0 0 20px var(--cyan-glow), inset 0 0 20px var(--cyan-dim) !important;
  color: #fff !important;
}
.nav__cta::after { display: none !important; }

/* Mobile menu */
.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  margin-left: auto;
  padding: 4px;
  background: none;
  border: none;
}
.nav__burger span {
  display: block;
  width: 24px;
  height: 1px;
  background: var(--cyan);
  box-shadow: 0 0 6px var(--cyan);
  transition: all var(--transition);
}

/* ── Section Headers ─────────────────────────────────────── */
.section-header {
  margin-bottom: 60px;
}
.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  color: var(--cyan);
  text-transform: uppercase;
  display: block;
  margin-bottom: 12px;
}
.section-title {
  color: var(--text-primary);
  margin-bottom: 16px;
}
.section-title .accent { color: var(--cyan); }
.section-title .accent-magenta { color: var(--magenta); }
.section-line {
  width: 60px;
  height: 1px;
  background: linear-gradient(90deg, var(--cyan), transparent);
  box-shadow: 0 0 8px var(--cyan);
  margin-top: 20px;
}

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border-radius: var(--card-radius);
  transition: all var(--transition);
  cursor: pointer;
  border: none;
  text-decoration: none;
}
.btn-primary {
  background: transparent;
  color: var(--cyan);
  border: 1px solid var(--cyan);
  box-shadow: 0 0 12px var(--cyan-dim), inset 0 0 12px var(--cyan-dim);
}
.btn-primary:hover {
  background: var(--cyan-dim);
  color: #fff;
  box-shadow: 0 0 24px var(--cyan-glow), inset 0 0 24px var(--cyan-dim);
  transform: translateY(-2px);
}
.btn-secondary {
  background: transparent;
  color: var(--magenta);
  border: 1px solid var(--magenta);
  box-shadow: 0 0 12px var(--magenta-dim), inset 0 0 12px var(--magenta-dim);
}
.btn-secondary:hover {
  background: var(--magenta-dim);
  color: #fff;
  box-shadow: 0 0 24px var(--magenta-glow), inset 0 0 24px var(--magenta-dim);
  transform: translateY(-2px);
}
.btn svg { width: 16px; height: 16px; }

/* ── Cards ───────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-cyan);
  border-radius: var(--card-radius);
  box-shadow: 0 0 12px var(--cyan-dim);
  transition: all var(--transition);
  overflow: hidden;
  position: relative;
}
.card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--card-radius);
  background: linear-gradient(135deg, var(--cyan-dim) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}
.card:hover {
  border-color: var(--cyan);
  box-shadow: 0 0 24px var(--cyan-glow), 0 0 48px var(--cyan-dim);
  transform: translateY(-6px);
}
.card:hover::before { opacity: 1; }

/* ── Tag / Badge ─────────────────────────────────────────── */
.tag {
  display: inline-block;
  padding: 4px 12px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: 2px;
}
.tag-cyan {
  color: var(--cyan);
  border: 1px solid var(--border-cyan);
  background: var(--cyan-dim);
}
.tag-magenta {
  color: var(--magenta);
  border: 1px solid var(--border-magenta);
  background: var(--magenta-dim);
}

/* ── Footer ──────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border-cyan);
  padding: 48px clamp(20px, 5vw, 60px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  background: var(--bg-secondary);
}
.footer__logo {
  font-family: var(--font-display);
  font-size: 0.9rem;
  color: var(--cyan);
  letter-spacing: 0.2em;
  text-shadow: 0 0 12px var(--cyan-glow);
}
.footer__copy {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
}
.footer__links {
  display: flex;
  gap: 24px;
  list-style: none;
}
.footer__links a {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: color var(--transition-fast), text-shadow var(--transition-fast);
}
.footer__links a:hover {
  color: var(--cyan);
  text-shadow: 0 0 8px var(--cyan-glow);
}

/* ── Glowing HR / Divider ────────────────────────────────── */
.glow-hr {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), var(--magenta), transparent);
  box-shadow: 0 0 8px var(--cyan);
  margin: 0;
}

/* ── Metric / Stat Block ─────────────────────────────────── */
.metric {
  text-align: center;
}
.metric__value {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  color: var(--cyan);
  text-shadow: 0 0 24px var(--cyan-glow);
  display: block;
  line-height: 1;
}
.metric__value.magenta {
  color: var(--magenta);
  text-shadow: 0 0 24px var(--magenta-glow);
}
.metric__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-top: 8px;
  display: block;
}

/* ── CRT Flicker ─────────────────────────────────────────── */
@keyframes crtFlicker {
  0%   { opacity: 1; }
  92%  { opacity: 1; }
  93%  { opacity: 0.85; }
  94%  { opacity: 1; }
  97%  { opacity: 1; }
  98%  { opacity: 0.9; }
  100% { opacity: 1; }
}
.crt-flicker {
  animation: crtFlicker 8s infinite;
}

/* ── Glow Text ───────────────────────────────────────────── */
.glow-cyan {
  color: var(--cyan);
  text-shadow: 0 0 16px var(--cyan-glow), 0 0 40px var(--cyan-dim);
}
.glow-magenta {
  color: var(--magenta);
  text-shadow: 0 0 16px var(--magenta-glow), 0 0 40px var(--magenta-dim);
}

/* ── Typewriter cursor ───────────────────────────────────── */
@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}
.cursor {
  display: inline-block;
  width: 2px;
  height: 1em;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
  vertical-align: middle;
  margin-left: 4px;
  animation: blink 1s step-end infinite;
}

/* ── HUD corner decoration ───────────────────────────────── */
.hud-frame {
  position: relative;
}
.hud-frame::before,
.hud-frame::after,
.hud-frame .hud-br,
.hud-frame .hud-bl {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  border-color: var(--cyan);
  border-style: solid;
  opacity: 0.7;
}
.hud-frame::before { top: 0; left: 0; border-width: 2px 0 0 2px; }
.hud-frame::after  { top: 0; right: 0; border-width: 2px 2px 0 0; }
.hud-frame .hud-br { bottom: 0; right: 0; border-width: 0 2px 2px 0; }
.hud-frame .hud-bl { bottom: 0; left: 0; border-width: 0 0 2px 2px; }

/* ── Scroll reveal ───────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Utility ─────────────────────────────────────────────── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 clamp(20px, 5vw, 60px);
}
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.text-center { text-align: center; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }
.mt-64 { margin-top: 64px; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.mb-48 { margin-bottom: 48px; }

/* ── CASE STUDY SPECIFIC ─────────────────────────────────── */
/* Shared wave canvas — used on hero/header sections across all pages */
canvas.hero__waves {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.55;
}
@media (max-width: 768px) {
  canvas.hero__waves { opacity: 0.4; }
}

.cs-hero {
  padding-top: calc(var(--nav-h) + 60px);
  padding-bottom: 80px;
  position: relative;
}
.cs-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 24px;
  align-items: center;
}
.cs-meta__item {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
}
.cs-meta__item span {
  color: var(--cyan);
  display: block;
  font-size: 0.85rem;
}
.cs-meta__sep {
  width: 1px;
  height: 30px;
  background: var(--border-cyan);
}

.cs-section {
  padding: var(--section-pad) 0;
  border-bottom: 1px solid rgba(0, 245, 255, 0.08);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0;
  position: relative;
}
.process-steps::after {
  content: '';
  position: absolute;
  top: 32px;
  left: 8%;
  right: 8%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), var(--magenta), transparent);
  box-shadow: 0 0 8px var(--cyan);
}
.process-step {
  text-align: center;
  padding: 24px 16px;
  position: relative;
  z-index: 1;
}
.process-step__num {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: 1px solid var(--cyan);
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--cyan);
  text-shadow: 0 0 12px var(--cyan-glow);
  box-shadow: 0 0 16px var(--cyan-dim);
}
.process-step__title {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-primary);
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}
.process-step__desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.5;
  max-width: none;
}

.insight-card {
  background: var(--bg-card);
  border-left: 2px solid var(--cyan);
  padding: 20px 24px;
  box-shadow: 0 0 12px var(--cyan-dim);
  border-radius: 0 4px 4px 0;
}
.insight-card.magenta {
  border-left-color: var(--magenta);
  box-shadow: 0 0 12px var(--magenta-dim);
}
.insight-card__label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--cyan);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.insight-card.magenta .insight-card__label { color: var(--magenta); }
.insight-card__text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: none;
}

.wireframe-placeholder {
  background: var(--bg-elevated);
  border: 1px dashed var(--border-cyan);
  border-radius: var(--card-radius);
  padding: 80px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.wireframe-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(0, 245, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 245, 255, 0.03) 1px, transparent 1px);
  background-size: 20px 20px;
}
.wireframe-placeholder__icon {
  font-family: var(--font-mono);
  font-size: 2rem;
  color: var(--border-cyan);
  display: block;
  margin-bottom: 12px;
}
.wireframe-placeholder__text {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
}

.cs-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  padding: 60px 0;
}
.cs-nav__link {
  background: var(--bg-card);
  border: 1px solid var(--border-cyan);
  border-radius: var(--card-radius);
  padding: 28px 32px;
  transition: all var(--transition);
  box-shadow: 0 0 12px var(--cyan-dim);
  display: block;
}
.cs-nav__link:hover {
  border-color: var(--cyan);
  box-shadow: 0 0 24px var(--cyan-glow);
  transform: translateY(-4px);
}
.cs-nav__direction {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.cs-nav__title {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--text-primary);
  font-weight: 600;
}
.cs-nav__link:hover .cs-nav__title { color: var(--cyan); }
.cs-nav__link.next { text-align: right; }

/* ── Mobile Responsive ───────────────────────────────────── */
@media (max-width: 768px) {
  :root { --nav-h: 60px; }

  .nav__links {
    display: none;
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: rgba(10, 10, 15, 0.97);
    border-bottom: 1px solid var(--border-cyan);
    flex-direction: column;
    padding: 32px;
    gap: 24px;
  }
  .nav__links.open { display: flex; }
  .nav__links a { font-size: 1rem; }
  .nav__cta { margin-left: 0; }
  .nav__burger { display: flex; }

  .process-steps::after { display: none; }
  .process-steps { gap: 16px; }

  .cs-nav { grid-template-columns: 1fr; }
  .cs-nav__link.next { text-align: left; }

  .footer { flex-direction: column; text-align: center; }

  .metric__value { font-size: 2.5rem; }
}

@media (max-width: 480px) {
  h1 { font-size: 1.8rem; }
  h2 { font-size: 1.4rem; }
  .btn { padding: 12px 24px; font-size: 0.75rem; }
}