/* ============================================================
   COUNTDOWN TO 2050 — STYLESHEET
   Aesthetic: Dark Cosmic / Futurist Terminal
   ============================================================ */

/* ===== CSS VARIABLES ===== */
:root {
  --bg-deep:    #050810;
  --bg-card:    #0c1120;
  --bg-surface: #111827;
  --accent:     #00e5ff;
  --accent-2:   #ff3cac;
  --accent-glow: rgba(0, 229, 255, 0.15);
  --text-primary: #f0f4ff;
  --text-muted:   #6b7a99;
  --text-dim:     #3d4a66;
  --border:     rgba(0, 229, 255, 0.12);
  --border-strong: rgba(0, 229, 255, 0.3);
  --font-display: 'Bebas Neue', sans-serif;
  --font-body:    'DM Sans', sans-serif;
  --font-mono:    'DM Mono', monospace;
  --radius:     8px;
  --radius-lg:  16px;
  --shadow-glow: 0 0 40px rgba(0, 229, 255, 0.08);
  --transition: 0.25s ease;
}

/* ===== RESET ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--accent); text-decoration: none; transition: opacity var(--transition); }
a:hover { opacity: 0.8; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: var(--font-body); }
details, summary { cursor: pointer; }

/* ===== SKIP LINK ===== */
.skip-link {
  position: absolute; top: -40px; left: 1rem;
  background: var(--accent); color: var(--bg-deep);
  padding: 8px 16px; border-radius: var(--radius);
  font-weight: 600; z-index: 9999; transition: top 0.2s;
}
.skip-link:focus { top: 1rem; }

/* ===== CONTAINER ===== */
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }

/* ===== HEADER ===== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(5, 8, 16, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  height: 64px;
}
.header-inner {
  height: 64px; display: flex; align-items: center;
  justify-content: space-between; gap: 2rem;
}
.logo { display: flex; align-items: center; gap: 0.6rem; }
.logo-mark {
  font-family: var(--font-display);
  font-size: 1.8rem; letter-spacing: 2px;
  color: var(--accent);
  text-shadow: 0 0 20px var(--accent);
}
.logo-text {
  font-family: var(--font-mono);
  font-size: 0.7rem; letter-spacing: 4px;
  color: var(--text-muted); text-transform: uppercase;
}
.main-nav ul { display: flex; gap: 2rem; }
.main-nav a {
  font-family: var(--font-mono);
  font-size: 0.78rem; letter-spacing: 2px;
  color: var(--text-muted); text-transform: uppercase;
  transition: color var(--transition);
}
.main-nav a:hover { color: var(--accent); opacity: 1; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 4px; }
.nav-toggle span {
  display: block; width: 22px; height: 2px;
  background: var(--accent); border-radius: 2px;
  transition: all 0.3s;
}

/* ===== HERO / COUNTDOWN SECTION ===== */
.hero-section {
  min-height: 100vh; display: flex; align-items: center;
  position: relative; padding: 100px 0 60px;
}
.hero-bg {
  position: absolute; inset: 0; overflow: hidden;
  pointer-events: none; z-index: 0;
}
.grid-lines {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(0,229,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,229,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}
.glow-orb {
  position: absolute; border-radius: 50%;
  filter: blur(80px); opacity: 0.5;
}
.orb-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(0,229,255,0.12), transparent 70%);
  top: -200px; right: -200px;
  animation: orb-float 12s ease-in-out infinite;
}
.orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(255,60,172,0.08), transparent 70%);
  bottom: -100px; left: -100px;
  animation: orb-float 16s ease-in-out infinite reverse;
}
@keyframes orb-float {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-30px) scale(1.05); }
}
.hero-inner { position: relative; z-index: 1; text-align: center; width: 100%; }
.hero-label {
  font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 5px;
  color: var(--accent); text-transform: uppercase;
  margin-bottom: 1.5rem;
  animation: fade-up 0.8s ease both;
}
h1 {
  display: flex; flex-direction: column; align-items: center;
  gap: 0; line-height: 1;
  animation: fade-up 0.9s ease 0.1s both;
}
.h1-sub {
  font-family: var(--font-body); font-size: 1.1rem; font-weight: 300;
  letter-spacing: 6px; color: var(--text-muted); text-transform: uppercase;
}
.h1-main {
  font-family: var(--font-display); font-size: clamp(7rem, 20vw, 14rem);
  letter-spacing: -4px; color: var(--text-primary);
  text-shadow: 0 0 80px rgba(0,229,255,0.3), 0 0 160px rgba(0,229,255,0.1);
  line-height: 0.9;
}

/* ===== COUNTDOWN CLOCK ===== */
.countdown-clock {
  display: flex; align-items: center; justify-content: center;
  gap: 0.5rem; flex-wrap: wrap;
  margin: 3rem auto 2.5rem;
  animation: fade-up 1s ease 0.2s both;
}
.clock-unit {
  display: flex; flex-direction: column; align-items: center;
  min-width: 100px;
}
.clock-digits {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 5rem);
  letter-spacing: 2px;
  color: var(--accent);
  text-shadow: 0 0 30px rgba(0,229,255,0.6);
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  padding: 0.3em 0.5em;
  min-width: 1.8em; text-align: center;
  transition: text-shadow 0.3s;
}
.clock-seconds {
  color: var(--accent-2);
  text-shadow: 0 0 30px rgba(255,60,172,0.6);
  border-color: rgba(255,60,172,0.3);
}
.clock-label {
  font-family: var(--font-mono); font-size: 0.65rem;
  letter-spacing: 3px; color: var(--text-muted);
  text-transform: uppercase; margin-top: 0.5rem;
}
.clock-sep {
  font-family: var(--font-display); font-size: 3rem;
  color: var(--text-dim); align-self: flex-start;
  margin-top: 0.3em; line-height: 1;
}

/* ===== PROGRESS BAR ===== */
.progress-section {
  max-width: 700px; margin: 0 auto 3rem;
  animation: fade-up 1s ease 0.35s both;
}
.progress-label {
  display: flex; justify-content: space-between;
  font-family: var(--font-mono); font-size: 0.7rem;
  color: var(--text-muted); margin-bottom: 0.6rem;
}
.progress-track {
  height: 6px; background: var(--bg-surface);
  border-radius: 100px; overflow: hidden;
  border: 1px solid var(--border);
}
.progress-fill {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 100px;
  transition: width 1s ease;
  box-shadow: 0 0 12px rgba(0,229,255,0.5);
}
.progress-note {
  font-family: var(--font-mono); font-size: 0.72rem;
  color: var(--text-muted); text-align: center;
  margin-top: 0.6rem;
}

/* ===== QUICK STATS ===== */
.quick-stats {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem; max-width: 800px; margin: 0 auto;
  animation: fade-up 1s ease 0.45s both;
}
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.4rem 1rem;
  text-align: center;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.stat-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-glow);
}
.stat-num {
  font-family: var(--font-display);
  font-size: 2rem; letter-spacing: 1px;
  color: var(--accent);
}
.stat-desc {
  font-size: 0.78rem; color: var(--text-muted);
  margin-top: 0.3rem;
}

/* ===== SECTION COMMON ===== */
.section-header {
  text-align: center; margin-bottom: 3rem;
}
.section-label {
  font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 5px;
  color: var(--accent); text-transform: uppercase; margin-bottom: 0.8rem;
}
h2 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 6vw, 4rem);
  letter-spacing: 1px; color: var(--text-primary); line-height: 1.1;
  margin-bottom: 1rem;
}
.section-header p { color: var(--text-muted); max-width: 540px; margin: 0 auto; }

/* ===== CALENDAR SECTION ===== */
.calendar-section {
  padding: 100px 0;
  background: linear-gradient(180deg, var(--bg-deep) 0%, var(--bg-card) 50%, var(--bg-deep) 100%);
}
.calendar-widget {
  max-width: 640px; margin: 0 auto;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4), var(--shadow-glow);
}
.cal-nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.5rem 2rem;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
}
.cal-btn {
  width: 40px; height: 40px; border-radius: var(--radius);
  border: 1px solid var(--border);
  color: var(--accent); font-size: 1.2rem;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition);
  background: var(--bg-surface);
}
.cal-btn:hover { border-color: var(--accent); box-shadow: 0 0 12px rgba(0,229,255,0.2); }
.cal-btn:disabled { opacity: 0.3; cursor: not-allowed; }
.cal-title-wrap { text-align: center; }
#cal-month-title {
  font-family: var(--font-display); font-size: 1.6rem;
  letter-spacing: 2px; color: var(--text-primary);
}
.cal-days-away {
  font-family: var(--font-mono); font-size: 0.65rem;
  letter-spacing: 2px; color: var(--text-muted);
  margin-top: 0.2rem;
}
.cal-body { padding: 1.5rem; }
.cal-weekdays {
  display: grid; grid-template-columns: repeat(7, 1fr);
  margin-bottom: 0.5rem;
}
.cal-weekdays div {
  font-family: var(--font-mono); font-size: 0.65rem;
  letter-spacing: 2px; color: var(--text-muted);
  text-align: center; padding: 0.5rem 0;
  text-transform: uppercase;
}
.cal-grid {
  display: grid; grid-template-columns: repeat(7, 1fr);
  gap: 2px;
}
.cal-day {
  aspect-ratio: 1; display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-size: 0.85rem;
  border-radius: 6px; cursor: pointer;
  color: var(--text-primary);
  transition: all var(--transition);
  position: relative;
}
.cal-day:hover { background: var(--accent-glow); color: var(--accent); }
.cal-day.today {
  background: var(--accent); color: var(--bg-deep);
  font-weight: 600;
  box-shadow: 0 0 16px rgba(0,229,255,0.4);
}
.cal-day.other-month { color: var(--text-dim); }
.cal-day.past { color: var(--text-dim); }
.cal-day.selected {
  background: rgba(255,60,172,0.15);
  color: var(--accent-2);
  border: 1px solid rgba(255,60,172,0.4);
}
.cal-day.weekend { color: rgba(240, 244, 255, 0.5); }
.cal-day.today.weekend { color: var(--bg-deep); }
.cal-footer {
  display: flex; gap: 1rem; padding: 1rem 1.5rem;
  border-top: 1px solid var(--border);
  background: var(--bg-card);
}
.cal-jump-btn {
  flex: 1; padding: 0.6rem;
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--radius); color: var(--text-muted);
  font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 1px;
  transition: all var(--transition);
}
.cal-jump-btn:hover { border-color: var(--accent); color: var(--accent); }

/* ===== MILESTONES / TIMELINE ===== */
.milestones-section { padding: 100px 0; }
.timeline {
  position: relative; max-width: 700px; margin: 0 auto;
  padding-left: 3rem;
}
.timeline::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0;
  width: 1px; background: linear-gradient(180deg, transparent, var(--accent), transparent);
}
.timeline-item {
  position: relative; margin-bottom: 3rem; padding-left: 1.5rem;
}
.timeline-item::before {
  content: ''; position: absolute; left: -3rem; top: 0.4rem;
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px rgba(0,229,255,0.6);
  transform: translateX(-4.5px);
}
.tl-year {
  font-family: var(--font-display); font-size: 2rem;
  color: var(--accent); letter-spacing: 2px;
  margin-bottom: 0.4rem;
}
.tl-content h3 {
  font-family: var(--font-body); font-size: 1.1rem; font-weight: 600;
  color: var(--text-primary); margin-bottom: 0.4rem;
}
.tl-content p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.7; }

/* ===== FAQ ===== */
.faq-section { padding: 100px 0; background: var(--bg-card); }
.faq-list { max-width: 700px; margin: 0 auto; }
.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 1.2rem 0;
}
.faq-item summary {
  font-size: 1rem; font-weight: 500; color: var(--text-primary);
  list-style: none; display: flex; justify-content: space-between; align-items: center;
  transition: color var(--transition);
}
.faq-item summary:hover { color: var(--accent); }
.faq-item summary::after {
  content: '+'; font-size: 1.4rem; color: var(--accent);
  line-height: 1; flex-shrink: 0; margin-left: 1rem;
  transition: transform var(--transition);
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p {
  color: var(--text-muted); padding-top: 1rem;
  font-size: 0.9rem; line-height: 1.75;
}

/* ===== CTA ===== */
.cta-section {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--bg-deep) 0%, #0a1628 100%);
  text-align: center;
}
.cta-inner h2 { margin-bottom: 1rem; }
.cta-inner p { color: var(--text-muted); max-width: 500px; margin: 0 auto 2.5rem; }
.share-buttons { display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap; }
.share-btn {
  padding: 0.8rem 1.8rem;
  border-radius: var(--radius);
  font-family: var(--font-mono); font-size: 0.8rem; letter-spacing: 2px;
  font-weight: 500; text-transform: uppercase;
  transition: all var(--transition); cursor: pointer;
}
.share-twitter {
  background: var(--bg-card); border: 1px solid var(--border);
  color: var(--text-primary);
}
.share-twitter:hover { border-color: var(--accent); color: var(--accent); }
.share-fb {
  background: var(--bg-card); border: 1px solid var(--border);
  color: var(--text-primary);
}
.share-fb:hover { border-color: #4267B2; color: #4267B2; }
.share-copy {
  background: var(--accent); color: var(--bg-deep);
  border: 1px solid var(--accent);
}
.share-copy:hover { opacity: 0.85; }

/* ===== FOOTER ===== */
.site-footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  padding: 3rem 0;
}
.footer-inner {
  display: flex; flex-wrap: wrap; gap: 2rem;
  align-items: center; justify-content: space-between;
}
.footer-brand { display: flex; flex-direction: column; gap: 0.5rem; }
.footer-brand p { font-size: 0.82rem; color: var(--text-muted); max-width: 260px; }
.footer-nav ul { display: flex; flex-wrap: wrap; gap: 1.5rem; }
.footer-nav a { font-size: 0.82rem; color: var(--text-muted); }
.footer-nav a:hover { color: var(--accent); opacity: 1; }
.footer-copy { font-size: 0.78rem; color: var(--text-dim); width: 100%; text-align: center; }

/* ===== ANIMATIONS ===== */
@keyframes fade-up {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-in {
  opacity: 0; transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .main-nav { display: none; }
  .nav-toggle { display: flex; }
  .main-nav.open {
    display: flex; flex-direction: column;
    position: fixed; top: 64px; left: 0; right: 0;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 1.5rem;
  }
  .main-nav.open ul { flex-direction: column; gap: 1.5rem; }
  .countdown-clock { gap: 0.3rem; }
  .clock-unit { min-width: 70px; }
  .clock-sep { font-size: 2rem; }
  .quick-stats { grid-template-columns: repeat(2, 1fr); }
  .timeline { padding-left: 2rem; }
  .footer-inner { flex-direction: column; text-align: center; }
  .footer-nav ul { justify-content: center; }
}
@media (max-width: 480px) {
  .clock-digits { font-size: 2rem; padding: 0.3em 0.4em; }
  .clock-sep { display: none; }
  .share-buttons { flex-direction: column; align-items: stretch; max-width: 280px; margin: 0 auto; }
}

/* ===== PRINT ===== */
@media print {
  .site-header, .hero-bg, .share-buttons, .cta-section { display: none; }
  body { background: white; color: black; }
}