/* ─────────────────────────────────────────────────────
   Sedona Adventure Countdown — style.css
   Color palette pulled from the twilight Sedona photo:
     Deep sky:      #070514 → #302b63
     Amber lights:  #ff8c00 / #ffd700
     Turquoise pool:#40e0d0
     Red rocks:     #8b3a1f / #cc5500
   ───────────────────────────────────────────────────── */

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

/* ── Design tokens ──────────────────────────────────── */
:root {
  --sky-darkest:  #070514;
  --sky-dark:     #0f0c29;
  --sky-mid:      #1e1a4a;
  --sky-purple:   #302b63;

  --amber:        #ff8c00;
  --gold:         #ffd700;
  --warm-white:   #fff8e7;

  --turquoise:    #40e0d0;
  --turquoise-glow: rgba(64, 224, 208, 0.5);

  --rock-dark:    #5a1a0a;
  --rock-mid:     #8b3a1f;

  /* Glassmorphism card */
  --glass-bg:     rgba(15, 12, 41, 0.5);
  --glass-border: rgba(255, 215, 0, 0.18);

  /* Text shadows / glow */
  --glow-gold:
    0 0 8px  rgba(255, 215, 0, 1),
    0 0 20px rgba(255, 175, 0, 0.8),
    0 0 45px rgba(255, 140, 0, 0.5),
    0 0 90px rgba(255, 100, 0, 0.25);
  --glow-white:
    0 0 10px rgba(255, 248, 231, 0.9),
    0 0 30px rgba(255, 215, 0, 0.5),
    0 0 60px rgba(255, 165, 0, 0.25);
  --glow-turquoise:
    0 0 8px  rgba(64, 224, 208, 0.9),
    0 0 20px rgba(64, 224, 208, 0.5);
}

/* ── Base ───────────────────────────────────────────── */
html {
  height: 100%;
  /* Prevent elastic over-scroll revealing bare chrome */
  overflow: hidden;
  background: var(--sky-darkest);
}

body {
  height: 100%;
  overflow: hidden;
  font-family: 'Montserrat', system-ui, -apple-system, 'Helvetica Neue', Arial, sans-serif;
  color: var(--warm-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  /* Disable tap highlight on mobile */
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

/* ── Background photo ───────────────────────────────── */
.background {
  position: fixed;
  inset: 0;
  /* AVIF photo; plain color fallback if photo is missing */
  background-color: var(--sky-dark);
  background-image: url('background.avif');
  background-size: cover;
  background-position: center 60%;
  background-repeat: no-repeat;
  z-index: 0;
  /* Subtle scale so it doesn't feel static on first load */
  animation: slowZoom 60s ease-in-out infinite alternate;
}

@keyframes slowZoom {
  from { transform: scale(1);    background-position: center 60%; }
  to   { transform: scale(1.04); background-position: center 58%; }
}

/* ── Gradient overlay ───────────────────────────────── */
/*  Darker at top/bottom so text pops, lighter in the
    middle so the photo still glows through.            */
.overlay {
  position: fixed;
  inset: 0;
  background:
    linear-gradient(
      to bottom,
      rgba(7,   5,  20, 0.82)  0%,
      rgba(7,   5,  20, 0.30) 28%,
      rgba(7,   5,  20, 0.18) 50%,
      rgba(7,   5,  20, 0.38) 72%,
      rgba(7,   5,  20, 0.80) 100%
    );
  z-index: 1;
}

/* ── App shell ──────────────────────────────────────── */
.app {
  position: relative;
  z-index: 2;
  /* Use 100dvh (dynamic viewport height) for iOS Safari */
  height: 100svh;
  height: 100dvh;
  /* Honour notch / Dynamic Island / home indicator */
  padding-top:    max(1.75rem, env(safe-area-inset-top, 0px));
  padding-bottom: max(1.5rem,  env(safe-area-inset-bottom, 0px));
  padding-left:   max(1.25rem, env(safe-area-inset-left, 0px));
  padding-right:  max(1.25rem, env(safe-area-inset-right, 0px));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
}

/* ── Header ─────────────────────────────────────────── */
.header {
  text-align: center;
  width: 100%;
  /* Let header breathe a little */
  padding-top: 0.25rem;
}

.eyebrow {
  font-size: 0.7rem;
  letter-spacing: 0.55em;
  color: var(--turquoise);
  text-shadow: var(--glow-turquoise);
  opacity: 0.85;
  margin-bottom: 0.6rem;
}

.title {
  font-family: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  font-size: clamp(2rem, 9vw, 3.6rem);
  font-weight: 300;
  letter-spacing: 0.07em;
  line-height: 1.1;
  color: var(--warm-white);
  text-shadow: var(--glow-white);
  /* No uppercase — keep the elegance of mixed case */
  white-space: nowrap;
}

.subtitle {
  margin-top: 0.55rem;
  font-size: clamp(0.6rem, 2.4vw, 0.82rem);
  font-weight: 300;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(255, 248, 231, 0.65);
  /* Clamp to one line so it never wraps on narrow screens */
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

/* Turquoise hairline under the subtitle */
.divider {
  width: 72px;
  height: 1px;
  margin: 1rem auto 0;
  background: linear-gradient(to right,
    transparent 0%,
    var(--turquoise) 50%,
    transparent 100%
  );
  box-shadow: var(--glow-turquoise);
  opacity: 0.9;
}

/* ── Countdown grid ─────────────────────────────────── */
.countdown {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(0.45rem, 1.8vw, 1rem);
  width: 100%;
  /* Horizontal safe-area already handled by .app padding */
}

/* Individual time unit card */
.unit {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  /* Glassmorphism */
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: clamp(12px, 3vw, 18px);
  padding: clamp(0.6rem, 2.5vw, 1.1rem) clamp(0.25rem, 1vw, 0.75rem);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  /* Subtle inset highlight at the top edge */
  box-shadow:
    inset 0 1px 0 rgba(255, 215, 0, 0.12),
    0 4px 24px rgba(0, 0, 0, 0.4);
  transition: transform 0.15s ease;
}

/* Large luminous number */
.number {
  font-family: 'Montserrat', system-ui, -apple-system, sans-serif;
  font-size: clamp(2.4rem, 11.5vw, 4.8rem);
  font-weight: 800;
  /* Tabular nums keep width steady as digits change */
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum";
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--warm-white);
  text-shadow: var(--glow-gold);
  /* Reserve enough room so layout doesn't shift at 3-digit days */
  min-width: 2.4ch;
  text-align: center;
  /* Subtle flash animation when the digit changes */
  transition: opacity 0.08s ease;
}

/* Triggered by JS every second on the seconds element */
.number.tick {
  animation: tickPulse 0.12s ease-out;
}

@keyframes tickPulse {
  0%   { transform: scaleY(1);    opacity: 1; }
  40%  { transform: scaleY(0.94); opacity: 0.75; }
  100% { transform: scaleY(1);    opacity: 1; }
}

/* Small turquoise label beneath the number */
.label {
  font-size: clamp(0.52rem, 1.9vw, 0.7rem);
  font-weight: 400;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--turquoise);
  text-shadow: var(--glow-turquoise);
  opacity: 0.9;
}

/* ── Destination footer ─────────────────────────────── */
.destination {
  text-align: center;
  /* Give a little breathing room above the home bar */
  padding-bottom: 0.25rem;
}

.destination-place {
  font-size: clamp(0.65rem, 2.5vw, 0.85rem);
  font-weight: 300;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: rgba(255, 248, 231, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.85rem;
  margin-bottom: 0.35rem;
}

/* Small glowing amber dot separators */
.destination-dot {
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 6px var(--amber), 0 0 14px rgba(255, 140, 0, 0.5);
  flex-shrink: 0;
}

.destination-time {
  font-size: clamp(0.58rem, 1.9vw, 0.72rem);
  letter-spacing: 0.14em;
  color: rgba(255, 248, 231, 0.48);
}

/* ── Celebration screen ─────────────────────────────── */
.celebration {
  position: fixed;
  inset: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  /* Same overlay treatment — photo still glows through */
  background: rgba(7, 5, 20, 0.78);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  /* Hidden until triggered */
  opacity: 0;
  visibility: hidden;
  transition: opacity 1.2s ease, visibility 1.2s ease;
}

.celebration.visible {
  opacity: 1;
  visibility: visible;
}

.celebration-stars {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

/* Each JS-injected star particle */
.star-particle {
  position: absolute;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 6px var(--gold), 0 0 14px rgba(255, 200, 0, 0.6);
  animation: starSparkle var(--dur, 2s) var(--delay, 0s) ease-in-out infinite;
  transform-origin: center;
}

@keyframes starSparkle {
  0%   { opacity: 0; transform: scale(0) translateY(0); }
  30%  { opacity: 1; transform: scale(1) translateY(-8px); }
  70%  { opacity: 0.6; transform: scale(0.8) translateY(-4px); }
  100% { opacity: 0; transform: scale(0) translateY(0); }
}

/* Some turquoise particles for variety */
.star-particle.teal {
  background: var(--turquoise);
  box-shadow: 0 0 6px var(--turquoise), 0 0 14px rgba(64, 224, 208, 0.6);
}

.celebration-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 2.5rem 2rem;
  transform: translateY(24px);
  transition: transform 1.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.celebration.visible .celebration-content {
  transform: translateY(0);
}

.celebration-glyph {
  font-size: 2rem;
  color: var(--turquoise);
  text-shadow: var(--glow-turquoise);
  margin-bottom: 1.2rem;
  animation: celebGlyphSpin 8s linear infinite;
}

@keyframes celebGlyphSpin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

.celebration-title {
  font-family: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  font-size: clamp(3rem, 14vw, 6rem);
  font-weight: 300;
  font-style: italic;
  line-height: 1.1;
  letter-spacing: 0.04em;
  color: var(--warm-white);
  text-shadow: var(--glow-gold);
  margin-bottom: 1.25rem;
}

.celebration-subtitle {
  font-size: clamp(0.85rem, 3.5vw, 1.1rem);
  font-weight: 300;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--turquoise);
  text-shadow: var(--glow-turquoise);
  margin-bottom: 0.5rem;
}

.celebration-date {
  font-size: clamp(0.7rem, 2.5vw, 0.9rem);
  letter-spacing: 0.15em;
  color: rgba(255, 248, 231, 0.5);
}

/* ── Responsive adjustments ────────────────────────── */

/* iPhone SE (375 × 667) and similar compact screens */
@media (max-width: 390px) {
  .title {
    font-size: clamp(1.75rem, 8.5vw, 2.4rem);
    letter-spacing: 0.05em;
  }
  .subtitle {
    font-size: 0.6rem;
    letter-spacing: 0.18em;
  }
}

/* Very short viewports (landscape on phones) */
@media (max-height: 500px) and (orientation: landscape) {
  .app {
    padding-top: max(0.5rem, env(safe-area-inset-top, 0px));
    padding-bottom: max(0.5rem, env(safe-area-inset-bottom, 0px));
    padding-left:  max(2.5rem, env(safe-area-inset-left, 0px));
    padding-right: max(2.5rem, env(safe-area-inset-right, 0px));
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
  }

  .header {
    flex: 0 0 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding-top: 0;
  }

  .eyebrow,
  .divider {
    display: none;
  }

  .title {
    font-size: clamp(1.1rem, 4vh, 1.6rem);
    white-space: nowrap;
    margin-bottom: 0;
  }

  .subtitle {
    display: none;
  }

  .countdown {
    flex: 0 0 auto;
    width: auto;
    gap: 0.4rem;
  }

  .number {
    font-size: clamp(1.8rem, 7vh, 3rem);
  }

  .destination {
    flex: 0 0 100%;
  }
}

/* Tablets and wider — let units grow a bit */
@media (min-width: 600px) {
  .countdown {
    max-width: 520px;
  }
  .unit {
    padding: 1.25rem 1rem;
  }
}

/* ── Version badge ──────────────────────────────────────── */
.version {
  position: fixed;
  /* Bottom-right corner, clear of the home indicator */
  bottom: max(0.6rem, env(safe-area-inset-bottom, 0px));
  right:  max(0.75rem, env(safe-area-inset-right, 0px));
  z-index: 3;
  font-size: 0.6rem;
  font-weight: 300;
  letter-spacing: 0.12em;
  color: rgba(255, 248, 231, 0.28);
  /* No pointer events so it never blocks taps */
  pointer-events: none;
  user-select: none;
}

/* Respect user motion preference */
@media (prefers-reduced-motion: reduce) {
  .background { animation: none; }
  .number.tick { animation: none; }
  .celebration, .celebration-content { transition: none; }
  .celebration-glyph { animation: none; }
  .star-particle { animation: none; opacity: 0.8; }
}