/* ============ HACKATHON IA — Synthwave Design System ============ */
:root {
  --magenta: #FF00C8;
  --pink: #FF2D95;
  --cyan: #00F5FF;
  --blue: #007BFF;
  --violet: #2B006B;
  --plasma: #8A2BFF;
  --black: #050014;
  --navy: #090A2A;
  --gold: #D4A017;
  --gold-light: #FFE37A;
  --white: #F4F8FF;
  --orange: #FF7A00;
  --yellow: #FFD43B;

  --grad-hero: linear-gradient(135deg, #FF00C8 0%, #8A2BFF 45%, #00F5FF 100%);
  --grad-chrome: linear-gradient(180deg, #00F5FF 0%, #F4F8FF 32%, #8A2BFF 55%, #FF00C8 100%);
  --grad-sunset: linear-gradient(180deg, #FFD43B 0%, #FF7A00 45%, #FF2D95 100%);
  --grad-gold: linear-gradient(145deg, #FFF2A6 0%, #D4A017 35%, #8C5A00 70%, #FFE37A 100%);

  --font-display: "Audiowide", "Orbitron", system-ui, sans-serif;
  --font-tech: "Orbitron", system-ui, sans-serif;
  --font-ui: "Rajdhani", "Space Grotesk", system-ui, sans-serif;
  --font-mono: "Share Tech Mono", ui-monospace, monospace;
  --font-body: "Space Grotesk", system-ui, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  background: var(--black);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  overflow-x: hidden;
  min-height: 100vh;
}

a { color: var(--cyan); text-decoration: none; }

/* ============ Atmospheric backdrop ============ */
.bg-stage {
  position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background:
    radial-gradient(ellipse at 50% 30%, rgba(138,43,255,.35) 0%, transparent 55%),
    radial-gradient(ellipse at 80% 80%, rgba(255,0,200,.18) 0%, transparent 50%),
    radial-gradient(ellipse at 10% 90%, rgba(0,123,255,.20) 0%, transparent 55%),
    var(--black);
}
.bg-stars {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    radial-gradient(1px 1px at 20% 30%, rgba(255,255,255,.85), transparent 50%),
    radial-gradient(1px 1px at 70% 80%, rgba(0,245,255,.75), transparent 50%),
    radial-gradient(1px 1px at 40% 70%, rgba(255,255,255,.6), transparent 50%),
    radial-gradient(1.5px 1.5px at 90% 20%, rgba(255,0,200,.7), transparent 50%),
    radial-gradient(1px 1px at 15% 60%, rgba(255,255,255,.7), transparent 50%),
    radial-gradient(1px 1px at 60% 15%, rgba(0,245,255,.6), transparent 50%),
    radial-gradient(1px 1px at 85% 55%, rgba(255,255,255,.55), transparent 50%);
  background-size: 600px 600px, 700px 700px, 800px 800px, 900px 900px, 500px 500px, 750px 750px, 650px 650px;
  opacity: .8;
  animation: drift 120s linear infinite;
}
@keyframes drift {
  0% { background-position: 0 0,0 0,0 0,0 0,0 0,0 0,0 0; }
  100% { background-position: -600px -600px,700px -700px,-800px 800px,900px -900px,-500px 500px,750px -750px,-650px 650px; }
}

/* Grid floor that slowly moves */
.bg-grid {
  position: fixed; left: 0; right: 0; bottom: 0; height: 70vh; z-index: -1; pointer-events: none;
  perspective: 700px;
  overflow: hidden;
  mask-image: linear-gradient(180deg, transparent 0%, black 30%, black 100%);
  -webkit-mask-image: linear-gradient(180deg, transparent 0%, black 30%, black 100%);
}
.bg-grid::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,0,200,.55) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,245,255,.35) 1px, transparent 1px);
  background-size: 60px 60px;
  transform: rotateX(62deg) translateZ(0);
  transform-origin: bottom center;
  animation: gridmove 8s linear infinite;
  height: 200%;
  bottom: -100%;
}
@keyframes gridmove {
  0% { background-position: 0 0; }
  100% { background-position: 0 60px; }
}

/* ============ Typography ============ */
.kicker {
  font-family: var(--font-tech);
  font-weight: 700;
  letter-spacing: .35em;
  text-transform: uppercase;
  font-size: 12px;
  color: var(--cyan);
  text-shadow: 0 0 8px rgba(0,245,255,.6);
}
.kicker-mag {
  font-family: var(--font-tech);
  font-weight: 700;
  letter-spacing: .35em;
  text-transform: uppercase;
  font-size: 12px;
  color: var(--magenta);
  text-shadow: 0 0 8px rgba(255,0,200,.6);
}

.chrome-title {
  font-family: var(--font-display);
  background: var(--grad-chrome);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 0 14px rgba(255,0,200,.45)) drop-shadow(0 0 22px rgba(0,245,255,.35));
  line-height: .95;
  letter-spacing: -0.01em;
}

h1, h2, h3, h4 {
  font-family: var(--font-tech);
  font-weight: 600;
}

.mono { font-family: var(--font-mono); }

/* ============ Layout ============ */
.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
}

section {
  position: relative;
  padding: 120px 0;
}

/* ============ Top nav ============ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 32px;
  background: linear-gradient(180deg, rgba(5,0,20,.85), rgba(5,0,20,.0));
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0,245,255,.12);
  transition: background .3s;
}
.nav-brand {
  font-family: var(--font-display);
  font-size: 20px;
  background: var(--grad-chrome);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  letter-spacing: .02em;
  filter: drop-shadow(0 0 8px rgba(255,0,200,.4));
}
.nav-links { display: flex; gap: 32px; }
.nav-links a {
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--white);
  opacity: .82;
  transition: all .2s;
  position: relative;
}
.nav-links a:hover { color: var(--cyan); text-shadow: 0 0 8px rgba(0,245,255,.7); opacity: 1; }
.nav-links a.active { color: var(--cyan); }
.nav-links a.active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -8px; height: 2px;
  background: var(--cyan); box-shadow: 0 0 8px var(--cyan);
}

/* ============ Buttons ============ */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-tech);
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  font-size: 14px;
  padding: 14px 26px;
  border-radius: 4px;
  cursor: pointer;
  border: none;
  transition: all .25s cubic-bezier(.16,1,.3,1);
  position: relative;
  isolation: isolate;
}
.btn-primary {
  background: var(--grad-hero);
  color: white;
  border: 1px solid rgba(255,255,255,.5);
  box-shadow: 0 0 20px rgba(255,0,200,.45), 0 0 30px rgba(0,245,255,.25);
  clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 28px rgba(255,0,200,.7), 0 0 42px rgba(0,245,255,.4);
}
.btn-ghost {
  background: rgba(5,0,20,.55);
  color: var(--cyan);
  border: 1px solid rgba(0,245,255,.55);
  box-shadow: inset 0 0 18px rgba(0,245,255,.08);
  clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
}
.btn-ghost:hover {
  border-color: var(--magenta);
  color: var(--magenta);
  box-shadow: inset 0 0 18px rgba(255,0,200,.15), 0 0 18px rgba(255,0,200,.3);
}
.btn-gold {
  background: var(--grad-gold);
  color: #2a1500;
  font-weight: 700;
  box-shadow: 0 0 24px rgba(212,160,23,.45);
  clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
}
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 0 36px rgba(255,227,122,.6); }

/* ============ HUD card ============ */
.hud {
  background: linear-gradient(180deg, rgba(14,8,45,.78), rgba(5,0,20,.92));
  border: 1px solid rgba(0,245,255,.32);
  box-shadow: inset 0 0 24px rgba(255,0,200,.08), 0 0 24px rgba(0,245,255,.08);
  border-radius: 18px;
  padding: 28px;
  position: relative;
}
.hud-corners::before, .hud-corners::after,
.hud-corners > .c1, .hud-corners > .c2 {
  content: ""; position: absolute; width: 16px; height: 16px;
  border: 2px solid var(--magenta);
}
.hud-corners::before { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.hud-corners::after { top: -1px; right: -1px; border-left: 0; border-bottom: 0; }
.hud-corners > .c1 { bottom: -1px; left: -1px; border-right: 0; border-top: 0; }
.hud-corners > .c2 { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }

.hud-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .25em;
  color: var(--cyan);
  padding: 4px 10px;
  border: 1px solid rgba(0,245,255,.4);
  border-radius: 3px;
  background: rgba(0,245,255,.06);
  margin-bottom: 14px;
}

/* ============ Section headers ============ */
.section-head { margin-bottom: 56px; max-width: 720px; }
.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 64px);
  background: var(--grad-chrome);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin: 12px 0 16px;
  filter: drop-shadow(0 0 14px rgba(255,0,200,.4));
  line-height: 1;
}
.section-head p {
  font-size: 18px;
  color: rgba(244,248,255,.72);
  max-width: 620px;
}

/* ============ Footer ============ */
.footer {
  border-top: 1px solid rgba(0,245,255,.18);
  padding: 60px 0 40px;
  margin-top: 60px;
  background: linear-gradient(180deg, transparent, rgba(5,0,20,.9));
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
.footer h4 {
  font-family: var(--font-tech);
  font-size: 12px;
  letter-spacing: .25em;
  color: var(--magenta);
  text-transform: uppercase;
  margin-bottom: 16px;
}
.footer ul { list-style: none; }
.footer ul li { margin-bottom: 10px; font-family: var(--font-ui); font-size: 14px; }
.footer ul li a { color: rgba(244,248,255,.72); }
.footer ul li a:hover { color: var(--cyan); }
.footer-bottom {
  margin-top: 50px;
  padding-top: 24px;
  border-top: 1px solid rgba(0,245,255,.12);
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--font-mono); font-size: 12px;
  color: rgba(244,248,255,.5);
}
.footer-slogan {
  background: var(--grad-chrome);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-family: var(--font-display);
  font-size: 28px;
  margin-bottom: 12px;
}

/* ============ Condor wings overlay ============ */
.condor-wings {
  position: fixed; top: 60px; left: 50%; transform: translateX(-50%);
  width: 100%; max-width: 1400px; pointer-events: none; z-index: 1;
  opacity: .15;
}
.condor-wings svg { width: 100%; height: auto; filter: drop-shadow(0 0 20px var(--magenta)); }

/* ============ Form controls ============ */
.field {
  display: flex; flex-direction: column; gap: 8px;
  margin-bottom: 22px;
}
.field label {
  font-family: var(--font-tech);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--cyan);
}
.field input, .field select, .field textarea {
  font-family: var(--font-ui);
  font-size: 16px;
  padding: 14px 16px;
  background: rgba(5,0,20,.65);
  border: 1px solid rgba(0,245,255,.3);
  color: var(--white);
  border-radius: 6px;
  outline: none;
  transition: all .2s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--magenta);
  box-shadow: 0 0 0 3px rgba(255,0,200,.15), 0 0 18px rgba(255,0,200,.25);
}
.field input::placeholder { color: rgba(244,248,255,.35); }
.field-error {
  color: var(--magenta);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .15em;
  margin-top: 2px;
}

/* ============ Misc ============ */
.scanlines {
  position: relative;
}
.scanlines::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: repeating-linear-gradient(
    0deg, rgba(0,245,255,.04) 0 1px, transparent 1px 4px
  );
  mix-blend-mode: overlay;
}

/* ============ Hamburger menu (mobile) ============ */
.nav-burger {
  display: none;
  background: rgba(5,0,20,.55);
  border: 1px solid rgba(0,245,255,.4);
  border-radius: 6px;
  padding: 8px 10px;
  cursor: pointer;
  transition: all .2s;
}
.nav-burger:hover {
  border-color: var(--magenta);
  box-shadow: 0 0 14px rgba(255,0,200,.35);
}
.nav-burger svg { display: block; }
.nav-burger .line {
  fill: none; stroke: var(--cyan); stroke-width: 2.5; stroke-linecap: round;
  transition: all .25s cubic-bezier(.16,1,.3,1);
}

.nav-burger.open .line-1 { transform: translate(0, 7px) rotate(45deg); transform-origin: center; stroke: var(--magenta); }
.nav-burger.open .line-2 { opacity: 0; }
.nav-burger.open .line-3 { transform: translate(0, -7px) rotate(-45deg); transform-origin: center; stroke: var(--magenta); }

.nav-mobile-overlay {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  z-index: 49;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(255,0,200,.18), transparent 60%),
    linear-gradient(180deg, rgba(5,0,20,.98), rgba(5,0,20,.99));
  backdrop-filter: blur(20px);
  display: none;
  flex-direction: column;
  align-items: center; justify-content: center;
  gap: 20px;
  padding: 100px 24px 40px;
}
.nav-mobile-overlay.open { display: flex; }
.nav-mobile-overlay a {
  font-family: var(--font-display);
  font-size: 28px;
  background: var(--grad-chrome);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
  letter-spacing: .04em;
  padding: 14px 24px;
  position: relative;
}
.nav-mobile-overlay a.active {
  -webkit-text-fill-color: var(--cyan);
  filter: drop-shadow(0 0 12px var(--cyan));
}
.nav-mobile-overlay .btn {
  margin-top: 12px;
  font-size: 15px;
  padding: 16px 30px;
  -webkit-text-fill-color: white;
  background: var(--grad-hero);
  color: white;
}
.nav-mobile-meta {
  position: absolute; bottom: 32px; left: 0; right: 0;
  text-align: center;
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: .25em; color: rgba(244,248,255,.5);
}

body.menu-open { overflow: hidden; }

/* ============ Tablet & mobile ============ */
@media (max-width: 768px) {
  section { padding: 80px 0; }
  .container { padding: 0 20px; }
  .nav { padding: 14px 20px; }
  .nav-links { display: none; }
  .nav .btn { display: none; }
  .nav-burger { display: inline-flex; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .condor-wings { opacity: .08; }
}

/* ============ Small mobile ============ */
@media (max-width: 480px) {
  .nav { padding: 12px 16px; }
  .nav-brand { font-size: 17px; }
  .container { padding: 0 16px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  section { padding: 60px 0; }
  .section-head { margin-bottom: 36px; }
  .btn { padding: 13px 22px; font-size: 13px; }
  .footer { padding: 48px 0 32px; margin-top: 40px; }
}