/**
 * Artemis II Countdown — space-themed UI
 * Deep space palette, Orbitron/Rajdhani, subtle starfield, launch accent.
 */

:root {
  --bg-deep: #06070a;
  --bg-card: rgba(14, 18, 28, 0.75);
  --bg-card-hover: rgba(20, 26, 40, 0.85);
  --border: rgba(255, 255, 255, 0.06);
  --border-accent: rgba(245, 158, 11, 0.35);
  --text: #eef0f5;
  --text-muted: #8890a0;
  --accent: #f59e0b;
  --accent-dim: rgba(245, 158, 11, 0.4);
  --glow: rgba(245, 158, 11, 0.2);
  --font-display: 'Orbitron', sans-serif;
  --font-body: 'Rajdhani', sans-serif;
  --radius: 14px;
  --radius-sm: 10px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  font-size: clamp(14px, 2.2vw, 18px);
  -webkit-font-smoothing: antialiased;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg-deep);
  overflow-x: hidden;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background: radial-gradient(ellipse 120% 80% at 50% 50%, transparent 40%, rgba(0, 0, 0, 0.4) 100%);
  opacity: 0.6;
}

/* Subtle gradient shift — slow “breathing” background */
.bg-shift {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background: radial-gradient(
    ellipse 150% 100% at 50% 50%,
    rgba(20, 30, 50, 0.15) 0%,
    transparent 50%
  );
  background-size: 120% 120%;
  background-position: 50% 50%;
  animation: bgShift 20s ease-in-out infinite;
  opacity: 0.8;
}

@keyframes bgShift {
  0%, 100% { background-position: 50% 50%; opacity: 0.7; }
  33% { background-position: 55% 45%; opacity: 0.85; }
  66% { background-position: 45% 55%; opacity: 0.8; }
}

/* Moon — deep background, subtle pulse */
.moon {
  position: fixed;
  width: min(85vmax, 520px);
  height: min(85vmax, 520px);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 0;
  border-radius: 50%;
  background: radial-gradient(
    circle at 35% 35%,
    rgba(250, 248, 242, 0.28) 0%,
    rgba(220, 218, 210, 0.18) 35%,
    rgba(180, 178, 170, 0.1) 55%,
    transparent 80%
  );
  box-shadow:
    inset -10px -10px 30px rgba(0, 0, 0, 0.12),
    0 0 120px rgba(255, 255, 255, 0.06);
  opacity: 0.9;
  animation: moonPulse 8s ease-in-out infinite;
}

@keyframes moonPulse {
  0%, 100% { opacity: 0.88; filter: brightness(1); }
  50% { opacity: 0.95; filter: brightness(1.05); }
}

/* Starfield layers */
.stars,
.twinkle {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
}

.stars {
  background:
    radial-gradient(1.5px 1.5px at 20px 30px, rgba(255,255,255,0.4), transparent),
    radial-gradient(1.5px 1.5px at 40px 70px, rgba(255,255,255,0.35), transparent),
    radial-gradient(1px 1px at 90px 40px, rgba(255,255,255,0.5), transparent),
    radial-gradient(1.5px 1.5px at 130px 80px, rgba(255,255,255,0.3), transparent),
    radial-gradient(1px 1px at 160px 120px, rgba(255,255,255,0.45), transparent),
    radial-gradient(1.5px 1.5px at 200px 50px, rgba(255,255,255,0.35), transparent),
    radial-gradient(1px 1px at 250px 180px, rgba(255,255,255,0.4), transparent),
    radial-gradient(1.5px 1.5px at 300px 90px, rgba(255,255,255,0.3), transparent);
  background-size: 320px 220px;
  background-position: 0 0;
  opacity: 0.9;
}

/* Second star layer — slow drift (moving stars) */
.stars-drift {
  background:
    radial-gradient(1px 1px at 60px 20px, rgba(255,255,255,0.5), transparent),
    radial-gradient(1.5px 1.5px at 150px 90px, rgba(255,255,255,0.35), transparent),
    radial-gradient(1px 1px at 220px 160px, rgba(255,255,255,0.45), transparent),
    radial-gradient(1.5px 1.5px at 80px 140px, rgba(255,255,255,0.3), transparent),
    radial-gradient(1px 1px at 280px 50px, rgba(255,255,255,0.4), transparent),
    radial-gradient(1.5px 1.5px at 30px 180px, rgba(255,255,255,0.35), transparent);
  background-size: 320px 220px;
  background-position: 0 0;
  opacity: 0.85;
  animation: starDrift 120s linear infinite;
}

@keyframes starDrift {
  0% { background-position: 0 0; }
  100% { background-position: 320px 220px; }
}

.twinkle {
  background:
    radial-gradient(2px 2px at 60px 100px, rgba(255,255,255,0.6), transparent),
    radial-gradient(2px 2px at 180px 30px, rgba(255,255,255,0.5), transparent),
    radial-gradient(1.5px 1.5px at 280px 150px, rgba(255,255,255,0.55), transparent);
  background-size: 320px 220px;
  background-position: 0 0;
  opacity: 0;
  animation: twinkle 4s ease-in-out infinite;
}

@keyframes twinkle {
  0%, 100% { opacity: 0; }
  50% { opacity: 0.7; }
}

/* Occasional satellites — slow pass across the sky */
.satellite {
  position: fixed;
  pointer-events: none;
  z-index: 2;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.7);
  box-shadow: 0 0 6px rgba(255, 255, 255, 0.5);
  opacity: 0;
}

.satellite-1 {
  top: 18%;
  left: -10px;
  animation: satellitePass1 45s ease-in-out infinite;
}

.satellite-2 {
  top: 72%;
  left: 100%;
  animation: satellitePass2 55s ease-in-out infinite;
  animation-delay: 12s;
}

@keyframes satellitePass1 {
  0%, 2% { transform: translate(0, 0); opacity: 0; }
  3% { opacity: 0.7; }
  97% { transform: translate(calc(100vw + 20px), 8vh); opacity: 0.7; }
  98% { opacity: 0; }
  100% { transform: translate(calc(100vw + 20px), 8vh); opacity: 0; }
}

@keyframes satellitePass2 {
  0%, 2% { transform: translate(0, 0); opacity: 0; }
  3% { opacity: 0.5; }
  97% { transform: translate(calc(-100vw - 20px), -5vh); opacity: 0.5; }
  98% { opacity: 0; }
  100% { transform: translate(calc(-100vw - 20px), -5vh); opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .bg-shift,
  .moon,
  .stars-drift,
  .twinkle,
  .satellite {
    animation: none;
  }
  .satellite { opacity: 0; }
}

.container {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
  padding: clamp(2rem, 5vw, 4rem) 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
}

/* Hero */
.hero {
  text-align: center;
  margin-bottom: clamp(2rem, 5vw, 3.5rem);
}

.title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  letter-spacing: 0.08em;
  line-height: 1.1;
}

.title-artemis {
  display: block;
  color: var(--text);
  text-shadow: 0 0 50px var(--glow), 0 2px 4px rgba(0, 0, 0, 0.3);
}

.title-ii {
  display: inline-block;
  background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 50%, #d97706 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 700;
  letter-spacing: 0.25em;
  text-shadow: none;
  filter: drop-shadow(0 0 24px var(--accent-dim));
  position: relative;
  margin-bottom: 0.25rem;
}

.title-ii::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  border-radius: 1px;
  opacity: 0.8;
}

.tagline {
  margin: 0.6rem 0 0;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.mission {
  margin: 0.35rem 0 0;
  font-size: 0.95rem;
  color: var(--text-muted);
  opacity: 0.9;
}

/* Countdown grid */
.countdown {
  width: 100%;
  margin-bottom: 2rem;
}

.countdown-heading {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-align: center;
}

.countdown--wet-dress {
  margin-bottom: 2rem;
  max-width: 420px;
  margin-left: auto;
  margin-right: auto;
}

.countdown--wet-dress .countdown-heading {
  font-size: 0.75rem;
  margin-bottom: 0.5rem;
  opacity: 0.9;
}

.countdown--wet-dress .countdown-grid {
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.countdown--wet-dress .unit {
  padding: 0.5rem 0.4rem;
}

.countdown--wet-dress .unit .value {
  font-size: clamp(1.15rem, 3.5vw, 1.65rem);
}

.countdown--wet-dress .unit .label {
  font-size: 0.65rem;
  margin-top: 0.2rem;
  letter-spacing: 0.08em;
}

.countdown--wet-dress .target-display {
  font-size: 0.75rem;
  padding: 0.25rem 0.6rem;
  margin-top: 0.4rem;
}

.countdown-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(0.75rem, 2vw, 1.25rem);
  margin-bottom: 1rem;
}

.unit {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(1rem, 3vw, 1.5rem);
  text-align: center;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background 0.3s var(--ease-out), border-color 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out), transform 0.25s var(--ease-out);
  position: relative;
  overflow: hidden;
}

.unit::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--border-accent), transparent);
  opacity: 0;
  transition: opacity 0.3s var(--ease-out);
}

.unit:hover {
  background: var(--bg-card-hover);
  border-color: rgba(255, 255, 255, 0.1);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.03);
  transform: translateY(-2px);
}

.unit:hover::before {
  opacity: 1;
}

.unit .value {
  display: block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2rem, 6vw, 3.25rem);
  color: var(--text);
  line-height: 1.2;
  text-shadow: 0 0 24px var(--glow);
  font-variant-numeric: tabular-nums;
}

.unit .label {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.target-display {
  margin: 0.75rem 0 0;
  font-size: 0.85rem;
  color: var(--text-muted);
  text-align: center;
  display: inline-block;
  padding: 0.4rem 0.9rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 999px;
}

/* Footer */
.footer {
  margin-top: auto;
  padding-top: 2rem;
  text-align: center;
}

.footer p {
  margin: 0;
  font-size: 0.8rem;
  color: var(--text-muted);
  opacity: 0.8;
}

.footer-disclaimer {
  margin-top: 0.75rem;
  font-size: 0.75rem;
  opacity: 0.65;
}

/* Ko-fi donate button — centered at bottom */
.kofi-wrap {
  margin-top: 1.25rem;
  padding-bottom: 0.5rem;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
}

/* Video embed — responsive 16:9, glass frame */
.video {
  width: 100%;
  max-width: 560px;
  margin-bottom: 2rem;
}

.video-wrap {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 */
  height: 0;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.04);
  background: rgba(0, 0, 0, 0.2);
}

.video-wrap::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  padding: 1px;
  background: linear-gradient(145deg, rgba(255,255,255,0.08), transparent 40%, rgba(255,255,255,0.02));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  z-index: 1;
}

.video-wrap iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: var(--radius);
}

/* Feed — latest NASA Artemis posts */
.feed {
  width: 100%;
  max-width: 560px;
  margin-bottom: 2rem;
}

.feed-heading {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.feed-list {
  min-height: 2rem;
}

.feed-loading,
.feed-empty {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.feed-ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.feed-item {
  margin-bottom: 0.75rem;
  padding: 0.9rem 1rem;
  padding-left: 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  border-left: 3px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
  transition: background 0.25s var(--ease-out), border-color 0.25s var(--ease-out), border-left-color 0.25s var(--ease-out);
}

.feed-item:last-child {
  margin-bottom: 0;
}

.feed-item:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border);
  border-left-color: var(--accent);
}

.feed-link {
  display: block;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  transition: color 0.2s var(--ease-out);
}

.feed-link:hover {
  color: var(--accent);
}

.feed-meta {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.feed-desc {
  margin: 0.35rem 0 0;
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* Responsive */
@media (max-width: 520px) {
  .countdown-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .unit .value {
    font-size: clamp(1.75rem, 8vw, 2.5rem);
  }
}