/* ================================================================
   MUGVN MINI HACKATHON 2026 — STYLES
   Aesthetic: Dark terminal · MongoDB Green · Geometric precision
   ================================================================ */

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

:root {
  --green: #00ED64;
  --green-dim: #00b84e;
  --green-glow: rgba(0, 237, 100, 0.18);
  --bg: #0a0d0f;
  --bg-1: #111518;
  --bg-2: #161b1f;
  --bg-card: #13181c;
  --border: rgba(255,255,255,0.07);
  --border-green: rgba(0, 237, 100, 0.25);
  --text: #e8edf2;
  --text-muted: #6b7a86;
  --text-dim: #3d4f5c;
  --font-display: 'Be Vietnam Pro', sans-serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  --font-mono: 'Space Mono', monospace;
  --radius: 4px;
  --transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Scrollbar */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--green-dim); border-radius: 2px; }

/* ── Utilities ── */
.container { max-width: 1100px; margin: 0 auto; padding: 0 32px; }
.section { padding: 96px 0; }
.section-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--green);
  text-transform: uppercase;
  margin-bottom: 20px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 56px;
}
.section-title em { color: var(--green); font-style: normal; }

/* ── Reveal animations ── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.65s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal.visible { opacity: 1; transform: none; }
.delay-1 { transition-delay: 0.08s; }
.delay-2 { transition-delay: 0.16s; }
.delay-3 { transition-delay: 0.24s; }
.delay-4 { transition-delay: 0.32s; }
.delay-5 { transition-delay: 0.40s; }

/* ── Buttons ── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--green);
  color: #000;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.04em;
  padding: 14px 28px;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
}
.btn-primary:hover {
  background: #fff;
  box-shadow: 0 0 32px var(--green-glow);
  transform: translateY(-1px);
}
.btn-primary.btn-large { font-size: 16px; padding: 18px 36px; }
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 14px;
  padding: 14px 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  transition: color var(--transition), border-color var(--transition);
}
.btn-ghost:hover { color: var(--text); border-color: rgba(255,255,255,0.2); }

/* ================================================================
   NAV
   ================================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background var(--transition), border-color var(--transition);
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(10, 13, 15, 0.92);
  backdrop-filter: blur(16px);
  border-bottom-color: var(--border);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 32px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav-logo {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  color: var(--text);
  text-decoration: none;
  letter-spacing: 0.04em;
}
.logo-bracket { color: var(--text-muted); }
.logo-dot { color: var(--green); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}
.nav-links a {
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--text-muted);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: var(--radius);
  transition: color var(--transition), background var(--transition);
}
.nav-links a:hover { color: var(--text); background: rgba(255,255,255,0.04); }
.nav-cta {
  color: var(--green) !important;
  border: 1px solid var(--border-green);
  padding: 6px 14px !important;
}
.nav-cta:hover { background: var(--green-glow) !important; }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text);
  transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(4.5px, 4.5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(4.5px, -4.5px); }

/* ================================================================
   HERO
   ================================================================ */
.hero {
  min-height: 100vh;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 120px 32px 80px;
  overflow: hidden;
}

#particle-canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.hero-grid-lines {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(rgba(0,237,100,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,237,100,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  width: 100%;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--green);
  border: 1px solid var(--border-green);
  background: rgba(0, 237, 100, 0.06);
  padding: 6px 14px;
  border-radius: 2px;
  margin-bottom: 32px;
}
.badge-dot {
  width: 6px; height: 6px;
  background: var(--green);
  border-radius: 50%;
  animation: pulse-dot 1.8s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.7); }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(4rem, 13vw, 9rem);
  font-weight: 800;
  line-height: 0.92;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
  overflow: hidden;
}
.line-wrap { display: block; overflow: hidden; }
.title-line {
  display: block;
  transform: translateY(100%);
  animation: slide-up 0.8s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}
.title-line.delay-1 { animation-delay: 0.1s; }
.title-line.delay-2 { animation-delay: 0.2s; }
.title-line em { color: var(--green); font-style: normal; }
.title-year { color: transparent; -webkit-text-stroke: 1.5px rgba(255,255,255,0.15); }
@keyframes slide-up {
  to { transform: translateY(0); }
}

.hero-sub {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto 36px;
  line-height: 1.7;
  font-family: var(--font-body);
  font-weight: 400;
}
.hero-sub strong { color: var(--green); font-weight: 600; }

.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}
.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 32px;
}
.stat-num {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--green);
  line-height: 1;
  margin-bottom: 4px;
}
.stat-label {
  font-family: var(--font-body);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.stat-div {
  width: 1px;
  height: 32px;
  background: var(--border);
}

/* Countdown */
.countdown-wrap {
  position: relative;
  z-index: 1;
  margin-top: 56px;
  text-align: center;
}
.countdown-label {
  font-family: var(--font-body);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.countdown {
  display: flex;
  align-items: center;
  gap: 0;
  justify-content: center;
}
.cd-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 12px 20px;
  min-width: 70px;
}
.cd-block span:first-child {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  line-height: 1;
  display: block;
  min-width: 2ch;
  text-align: center;
}
.cd-unit {
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-top: 4px;
}
.cd-sep {
  font-family: var(--font-mono);
  font-size: 24px;
  color: var(--green);
  padding: 0 4px;
  margin-bottom: 14px;
  opacity: 0.7;
}

.scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dim);
  z-index: 1;
}
.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--border), transparent);
  animation: scroll-pulse 2s ease-in-out infinite;
}
@keyframes scroll-pulse {
  0% { opacity: 0.3; transform: scaleY(0.4); transform-origin: top; }
  50% { opacity: 1; transform: scaleY(1); }
  100% { opacity: 0.3; transform: scaleY(0.4); transform-origin: bottom; }
}

/* ================================================================
   ABOUT
   ================================================================ */
.about { background: var(--bg-1); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.about-text h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}
.about-text h2 em { color: var(--green); font-style: normal; }
.about-text p {
  font-family: var(--font-body);
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.75;
  margin-bottom: 16px;
}
.about-list {
  list-style: none;
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.about-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--text-muted);
}
.check {
  color: var(--green);
  font-weight: 700;
  flex-shrink: 0;
}

/* Terminal card */
.about-card-wrap { display: flex; justify-content: center; }
.about-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 24px 64px rgba(0,0,0,0.5), 0 0 0 1px rgba(0,237,100,0.05);
}
.card-terminal { font-family: var(--font-mono); }
.terminal-dots {
  display: flex;
  gap: 7px;
  padding: 12px 16px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
}
.terminal-dots span {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--border);
}
.terminal-dots span:nth-child(1) { background: #ff5f56; }
.terminal-dots span:nth-child(2) { background: #ffbd2e; }
.terminal-dots span:nth-child(3) { background: #27c93f; }
.terminal-body {
  padding: 20px 20px;
  font-size: 13px;
  line-height: 2;
}
.terminal-body p { margin: 0; }
.t-green { color: var(--green); }
.t-grey { color: var(--text-muted); }
.t-white { color: #fff; }
.cursor { animation: blink 1s step-end infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* ================================================================
   TOPIC
   ================================================================ */
.topic-section { background: var(--bg-1); }

.topic-card {
  display: flex;
  gap: 32px;
  align-items: flex-start;
  background: var(--bg-card);
  border: 1px solid var(--border-green);
  border-radius: 6px;
  padding: 40px 36px;
  margin-bottom: 32px;
  position: relative;
  overflow: hidden;
}
.topic-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(to right, var(--green), transparent);
}
.topic-icon { font-size: 48px; flex-shrink: 0; line-height: 1; margin-top: 4px; }
.topic-body h3 {
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--text);
}
.topic-desc {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 20px;
}
.topic-desc strong { color: var(--green); font-weight: 600; }
.topic-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--green);
  background: rgba(0,237,100,0.08);
  border: 1px solid var(--border-green);
  padding: 4px 10px;
  border-radius: 2px;
}
.topic-ideas { }
.ideas-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  margin-bottom: 16px;
}
.ideas-grid { display: flex; gap: 16px; flex-wrap: wrap; }
.idea-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 14px 20px;
  font-size: 14px;
  color: var(--text-muted);
  transition: border-color var(--transition), color var(--transition);
}
.idea-item:hover { border-color: var(--border-green); color: var(--text); }
.idea-icon { font-size: 20px; }

@media (max-width: 600px) {
  .topic-card { flex-direction: column; gap: 20px; padding: 28px 20px; }
  .ideas-grid { flex-direction: column; }
}

/* ================================================================
   PRIZES
   ================================================================ */
.prizes { background: var(--bg); }
.prizes-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.prize-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 40px 36px;
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.prize-card:hover { border-color: var(--border-green); box-shadow: 0 0 40px var(--green-glow); }
.prize-winner { border-color: rgba(0,237,100,0.3); }
.prize-rank { font-size: 36px; margin-bottom: 12px; }
.prize-label {
  font-family: var(--font-body);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.prize-amount {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--green);
  line-height: 1;
  margin-bottom: 24px;
}
.prize-amount span {
  font-size: 0.5em;
  color: var(--text-muted);
  vertical-align: super;
}
.prize-perks {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.prize-perks li {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--text-muted);
  padding-left: 16px;
  position: relative;
}
.prize-perks li::before { content: '→'; position: absolute; left: 0; color: var(--green); font-size: 12px; }
.prize-note {
  margin-top: 16px;
  font-family: var(--font-body);
  font-size: 11px;
  color: var(--text-dim);
  line-height: 1.5;
}
.prize-glow {
  position: absolute;
  top: -60px; right: -60px;
  width: 180px; height: 180px;
  background: radial-gradient(circle, var(--green-glow) 0%, transparent 70%);
  pointer-events: none;
}

/* ================================================================
   TIMELINE
   ================================================================ */
.timeline-section { background: var(--bg-1); }
.timeline {
  position: relative;
  padding-left: 32px;
  max-width: 680px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 7px; top: 0; bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--green), var(--border), transparent);
}
.tl-item {
  position: relative;
  padding: 0 0 44px 32px;
}
.tl-dot {
  position: absolute;
  left: -6px;
  top: 6px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--bg-2);
  border: 2px solid var(--border);
  transition: border-color var(--transition);
}
.tl-dot.active { border-color: var(--green); background: var(--green-glow); }
.tl-dot.highlight {
  border-color: var(--green);
  background: var(--green);
  box-shadow: 0 0 12px var(--green);
}
.tl-item:hover .tl-dot { border-color: var(--green-dim); }
.tl-date {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--green);
  display: block;
  margin-bottom: 6px;
}
.tl-content h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text);
}
.tl-content p {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ================================================================
   CRITERIA
   ================================================================ */
.criteria { background: var(--bg); }
.criteria-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 48px;
}
.crit-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 28px 24px;
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition);
}
.crit-card:hover { border-color: var(--border-green); }
.crit-bar {
  position: absolute;
  bottom: 0; left: 0;
  height: 2px;
  width: var(--pct);
  background: linear-gradient(to right, var(--green), var(--green-dim));
  transition: width 1.2s cubic-bezier(0.22,1,0.36,1);
}
.crit-pct {
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 700;
  color: var(--green);
  line-height: 1;
  margin-bottom: 12px;
}
.crit-card h3 {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 8px;
}
.crit-card p {
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.55;
}

.submission-note {
  background: var(--bg-card);
  border: 1px solid var(--border-green);
  border-radius: 6px;
  padding: 32px 36px;
}
.submission-note h3 {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 20px;
}
.sub-items { display: flex; flex-direction: column; gap: 20px; }
.sub-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.sub-icon { font-size: 22px; flex-shrink: 0; margin-top: 2px; }
.sub-item strong {
  display: block;
  font-size: 14px;
  margin-bottom: 4px;
  color: var(--text);
}
.sub-item p {
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ================================================================
   FAQ
   ================================================================ */
.faq { background: var(--bg-1); }
.faq-list {
  max-width: 720px;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item:first-child { border-top: 1px solid var(--border); }
.faq-q {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 22px 4px;
  background: none;
  border: none;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  gap: 16px;
  transition: color var(--transition);
}
.faq-q:hover { color: var(--green); }
.faq-icon {
  font-family: var(--font-mono);
  font-size: 22px;
  color: var(--green);
  flex-shrink: 0;
  transition: transform var(--transition);
  line-height: 1;
}
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.38s cubic-bezier(0.4, 0, 0.2, 1), padding var(--transition);
}
.faq-item.open .faq-a { max-height: 200px; }
.faq-a p {
  font-family: var(--font-body);
  padding: 0 4px 22px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
}
.faq-a a { color: var(--green); text-decoration: none; }
.faq-a a:hover { text-decoration: underline; }

/* ================================================================
   CTA
   ================================================================ */
.cta-section { background: var(--bg); padding: 80px 0; }
.cta-box {
  position: relative;
  border: 1px solid var(--border-green);
  border-radius: 8px;
  overflow: hidden;
  background: var(--bg-card);
}
.cta-glow {
  position: absolute;
  top: -100px; left: 50%;
  transform: translateX(-50%);
  width: 400px; height: 300px;
  background: radial-gradient(circle, rgba(0,237,100,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.cta-inner {
  position: relative;
  text-align: center;
  padding: 72px 32px;
}
.cta-eyebrow {
  font-family: var(--font-body);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 20px;
}
.cta-inner h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.cta-inner h2 em { color: var(--green); font-style: normal; }
.cta-sub {
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--text-muted);
  max-width: 480px;
  margin: 0 auto 32px;
  line-height: 1.7;
}
.cta-deadline {
  margin-top: 20px;
  font-family: var(--font-body);
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 0.06em;
}
.cta-deadline strong { color: var(--text-muted); }

/* ================================================================
   FOOTER
   ================================================================ */
.footer {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  padding: 40px 0 32px;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 24px;
}
.footer-brand {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14px;
  color: var(--text);
}
.footer-brand p {
  font-family: var(--font-body);
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 4px;
  font-weight: 400;
  letter-spacing: 0.06em;
}
.footer-links { display: flex; gap: 24px; }
.footer-links a {
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--green); }
.footer-copy {
  font-family: var(--font-body);
  font-size: 11px;
  color: var(--text-dim);
  border-top: 1px solid var(--border);
  padding-top: 20px;
  text-align: center;
  letter-spacing: 0.04em;
}

/* ================================================================
   RESPONSIVE
   ================================================================ */
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .prizes-grid { grid-template-columns: 1fr; }
  .criteria-grid { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 64px; left: 0; right: 0;
    background: rgba(10,13,15,0.97);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px 24px;
    gap: 4px;
  }
  .hero-stats { gap: 0; }
  .stat { padding: 0 20px; }
}
@media (max-width: 600px) {
  .container { padding: 0 20px; }
  .section { padding: 64px 0; }
  .hero { padding: 100px 20px 80px; }
  .criteria-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .cd-block { min-width: 58px; padding: 10px 14px; }
  .cd-block span:first-child { font-size: 22px; }
  .hero-stats { flex-wrap: wrap; justify-content: center; gap: 16px; }
  .stat-div { display: none; }
  .submission-note { padding: 24px 20px; }
}
@media (max-width: 400px) {
  .criteria-grid { grid-template-columns: 1fr; }
  .prizes-grid { grid-template-columns: 1fr; }
}