/* SnowCheck — Nieve: tonos suaves, mucho blanco; matices AI Proto Lab */
:root {
  --bg-deep: #f5f8fa;
  --bg-card: #ffffff;
  --bg-card-soft: rgba(255, 255, 255, 0.85);
  --border: #dce4ec;
  --border-soft: #e8eef4;

  --accent: #3d8da6;
  --accent-soft: #5eb3c9;
  --accent-pale: #a8d4e0;
  --ice: #7eb8c9;
  --snow: #f0f6fa;

  --text-primary: #1e2d3a;
  --text-secondary: #5a6c7d;
  --text-muted: #8a9aaa;

  --font: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --ease: cubic-bezier(0.23, 1, 0.32, 1);
}

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

html { font-size: 16px; -webkit-font-smoothing: antialiased; min-height: 100%; }
body {
  font-family: var(--font);
  background: var(--bg-deep);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
  display: flex;
  flex-direction: column;
  position: relative;
}

.bg-pattern {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.95) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(168, 212, 224, 0.15) 0%, transparent 45%),
    radial-gradient(circle at 50% 50%, rgba(126, 184, 201, 0.06) 0%, transparent 60%);
  background-size: 100% 100%, 100% 100%, 100% 100%;
}
.page { position: relative; z-index: 1; flex: 1; padding: 0 1.25rem 1.5rem; max-width: 900px; margin: 0 auto; width: 100%; }

/* ─── Topbar ─── */
.topbar {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.6rem 1.25rem;
  background: var(--bg-card-soft);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-soft);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.8);
}
.back-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  transition: color 0.2s;
}
.back-link:hover { color: var(--accent); }
.cta-case {
  font-size: 0.8rem;
  color: var(--text-secondary);
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font);
  padding: 0.25rem 0;
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.2s;
  flex-shrink: 0;
}
.cta-case:hover { color: var(--accent); }
.cta-case-mobile { display: none; }
@media (max-width: 640px) {
  .cta-case-desktop { display: none; }
  .cta-case-mobile { display: inline; }
}

/* ─── Hero ─── */
.hero { text-align: center; padding: 1rem 0 1.25rem; }
.hero-title {
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--accent);
  text-shadow: 0 1px 2px rgba(62, 141, 166, 0.15);
  margin: 0 0 0.35rem;
  line-height: 1.1;
  text-transform: uppercase;
}
.intro {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin: 0 auto;
  max-width: 420px;
  line-height: 1.45;
}

/* ─── Picker ─── */
.picker-section { display: flex; flex-direction: column; gap: 0.75rem; margin-bottom: 1rem; }
.day-toggle {
  display: flex;
  gap: 0.25rem;
  justify-content: center;
}
.day-btn {
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg-card);
  color: var(--text-secondary);
  cursor: pointer;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.day-btn:hover { border-color: var(--accent-soft); color: var(--accent); }
.day-btn.is-active {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(62, 141, 166, 0.08);
  box-shadow: 0 0 0 1px var(--accent-soft);
}
.picker-row { display: flex; gap: 0.5rem; align-items: center; flex-wrap: wrap; }
.station-select {
  flex: 1;
  min-width: 180px;
  padding: 0.65rem 1rem;
  font-family: var(--font);
  font-size: 0.95rem;
  color: var(--text-primary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12' fill='none' stroke='%239090b0' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M3 4.5L6 7.5L9 4.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.25rem;
}
.station-select:hover, .station-select:focus {
  border-color: var(--accent-soft);
  box-shadow: 0 0 0 2px rgba(62, 141, 166, 0.12);
  outline: none;
}
.check-btn {
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.65rem 1.25rem;
  border: none;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  transition: box-shadow 0.2s var(--ease), transform 0.2s var(--ease), background 0.2s;
}
.check-btn:hover {
  background: var(--accent-soft);
  box-shadow: 0 4px 14px rgba(62, 141, 166, 0.35);
  transform: translateY(-1px);
}
.check-btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }
.last-station-wrap.hidden { display: none; }
.last-station-btn {
  font-family: var(--font);
  font-size: 0.8rem;
  color: var(--text-secondary);
  background: none;
  border: none;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
  padding: 0.25rem 0;
}
.last-station-btn:hover { color: var(--accent); }

.data-source {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

/* ─── Placeholder vs result ─── */
.placeholder-result {
  background: var(--bg-card);
  border: 1px dashed var(--border);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.95rem;
  box-shadow: 0 1px 3px rgba(30, 45, 58, 0.06);
}
.result-wrap.hidden { display: none; }
.placeholder-result.hidden { display: none; }

/* ─── Score hero ─── */
.score-hero {
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: 14px;
  padding: 1.5rem;
  margin-bottom: 1.25rem;
  box-shadow: 0 2px 12px rgba(30, 45, 58, 0.08);
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.score-hero:hover { border-color: var(--accent-pale); box-shadow: 0 4px 20px rgba(62, 141, 166, 0.12); }
.score-hero-main { display: flex; align-items: baseline; justify-content: center; gap: 0.15rem; margin-bottom: 0.35rem; }
.score-number { font-size: clamp(2.5rem, 8vw, 3.5rem); font-weight: 700; color: var(--accent); text-shadow: 0 1px 2px rgba(62, 141, 166, 0.2); }
.score-slash { font-size: 1.25rem; color: var(--text-muted); }
.station-title { font-size: 1.15rem; font-weight: 700; color: var(--text-primary); margin: 0 0 0.5rem; text-align: center; }
.score-verdict { font-size: 1rem; font-weight: 600; margin: 0 0 0.35rem; text-align: center; }
.score-summary { font-size: 0.9rem; color: var(--text-secondary); margin: 0 0 1rem; text-align: center; line-height: 1.5; }
.snowfall-highlight {
  background: rgba(168, 212, 224, 0.25);
  border: 1px solid var(--accent-pale);
  border-radius: 8px;
  padding: 0.6rem 1rem;
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
  color: var(--accent);
  text-align: center;
}
.snowfall-highlight.hidden { display: none; }
.station-meta { font-size: 0.8rem; color: var(--text-muted); text-align: center; margin-bottom: 1rem; }
.hero-actions { text-align: center; }
.share-btn {
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.45rem 1rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}
.share-btn:hover { border-color: var(--accent); color: var(--accent); }
.share-btn.copied { border-color: var(--accent); color: var(--accent); }

/* ─── Sub-scores ─── */
.sub-scores {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}
.sub-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  transition: border-color 0.2s var(--ease);
}
.sub-card:hover { border-color: var(--accent-pale); }
.sub-label { font-size: 0.7rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); }
.sub-value { font-size: 1.1rem; font-weight: 700; color: var(--text-primary); }
.sub-bar {
  height: 6px;
  background: var(--bg-deep);
  border-radius: 3px;
  overflow: hidden;
}
.sub-bar-fill {
  display: block;
  height: 100%;
  background: var(--accent);
  border-radius: 3px;
  width: 0%;
  transition: width 0.4s var(--ease);
}

/* ─── Section heads ─── */
.section-head { font-size: 0.9rem; font-weight: 700; color: var(--text-primary); margin: 0 0 0.75rem; }

/* ─── Week grid ─── */
.week-section { margin-bottom: 1.5rem; }
.week-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0.5rem;
}
.day-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.75rem;
  text-align: center;
  transition: border-color 0.2s var(--ease);
}
.day-card:hover { border-color: var(--accent-pale); }
.day-card.best-day { border-color: var(--accent); box-shadow: 0 0 0 2px rgba(62, 141, 166, 0.15); }
.day-card .day-name { font-size: 0.7rem; font-weight: 600; text-transform: uppercase; color: var(--text-muted); margin-bottom: 0.25rem; }
.day-card .day-score { font-size: 1rem; font-weight: 700; color: var(--accent); }
.day-card .day-emoji { font-size: 1.25rem; margin: 0.25rem 0; }
.day-card .day-snow { font-size: 0.75rem; color: var(--text-secondary); }
.day-card .day-badge { font-size: 0.65rem; font-weight: 700; text-transform: uppercase; color: var(--accent); margin-top: 0.25rem; }

/* ─── Compare grid ─── */
.compare-section { margin-bottom: 1.5rem; }
.compare-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.75rem; }
.compare-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem;
  transition: border-color 0.2s var(--ease);
}
.compare-card:hover { border-color: var(--accent-pale); }
.compare-card .compare-name { font-size: 0.9rem; font-weight: 700; color: var(--text-primary); margin-bottom: 0.35rem; }
.compare-card .compare-row { font-size: 0.8rem; color: var(--text-secondary); margin-bottom: 0.2rem; }
.compare-card .compare-score { color: var(--accent); font-weight: 600; }

/* ─── Webcam grid ─── */
.webcam-section { margin-bottom: 1.5rem; }
.webcam-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.75rem; }
.webcam-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.85rem;
  transition: border-color 0.2s var(--ease);
}
.webcam-card:hover { border-color: var(--accent-pale); }
.webcam-card a {
  font-size: 0.85rem;
  color: var(--accent);
  text-decoration: none;
  display: block;
  text-align: center;
}
.webcam-card a:hover { text-decoration: underline; }
.webcam-card .webcam-label { font-size: 0.75rem; color: var(--text-muted); margin-bottom: 0.25rem; text-align: center; }

/* ─── Vote widget ─── */
.vote-widget {
  font: inherit;
  padding: 0.75rem 0;
  text-align: right;
  margin-left: auto;
  width: fit-content;
}
.vote-label { display: block; font-size: 0.8rem; color: var(--text-muted); margin-bottom: 0.25rem; }
.vote-nums { display: inline-flex; align-items: center; gap: 0.5rem; font-size: 0.95rem; }
.vote-num { cursor: pointer; color: var(--text-secondary); transition: color 0.15s; min-width: 1.2em; text-align: center; }
.vote-num:hover { color: var(--accent); }
.vote-num.vote-selected { color: var(--accent); }
.vote-num.vote-grey { color: var(--text-muted); }
.vote-thanks { font-size: 0.75rem; color: var(--text-muted); margin-left: 0.5rem; }

/* ─── Easter egg button ─── */
.easter-egg-btn {
  position: fixed;
  bottom: 1rem;
  right: 1rem;
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 1.25rem;
  cursor: pointer;
  z-index: 50;
  transition: color 0.2s, border-color 0.2s, box-shadow 0.2s;
  box-shadow: 0 2px 8px rgba(30, 45, 58, 0.1);
}
.easter-egg-btn:hover { color: var(--accent); border-color: var(--accent); box-shadow: 0 2px 12px rgba(62, 141, 166, 0.25); }

/* ─── Footer ─── */
.footer {
  flex-shrink: 0;
  text-align: center;
  padding: 0.75rem 1rem;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-secondary);
}
.footer a { color: var(--text-secondary); text-decoration: none; }
.footer a:hover { color: var(--accent); }

/* ─── Case modal (same as lab) ─── */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(30, 45, 58, 0.4);
  backdrop-filter: blur(6px);
  display: none;
  align-items: flex-end;
  justify-content: center;
  padding: 0;
  opacity: 0;
  transition: opacity 0.25s var(--ease);
}
.modal-overlay.is-open { display: flex; opacity: 1; }
@media (min-width: 640px) {
  .modal-overlay.is-open { align-items: center; padding: 2rem; }
}
.modal-panel {
  position: relative;
  width: 100%;
  max-height: 85vh;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px 16px 0 0;
  box-shadow: 0 -4px 40px rgba(30, 45, 58, 0.15);
  display: flex;
  flex-direction: column;
  transform: translateY(100%);
  transition: transform 0.35s var(--ease);
  overflow: hidden;
}
.modal-panel::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-soft));
  z-index: 1;
}
.modal-overlay.is-open .modal-panel { transform: translateY(0); }
@media (min-width: 640px) {
  .modal-panel { max-width: 440px; max-height: 80vh; border-radius: 16px; transform: scale(0.95); }
  .modal-overlay.is-open .modal-panel { transform: scale(1); }
}
.modal-drag { display: block; width: 36px; height: 4px; background: var(--border); border-radius: 2px; margin: 0.75rem auto 0; }
@media (min-width: 640px) { .modal-drag { display: none; } }
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem 0.75rem;
  border-bottom: 1px solid var(--border);
}
.modal-title { font-size: 1rem; font-weight: 700; color: var(--accent); margin: 0; }
.modal-close {
  width: 36px; height: 36px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 1.25rem;
  cursor: pointer;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s, background 0.2s;
}
.modal-close:hover { color: var(--text-primary); background: var(--border-soft); }
.modal-body {
  padding: 1rem 1.25rem 1.5rem;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.modal-body .label { font-size: 0.68rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-secondary); margin: 0.75rem 0 0.25rem; }
.modal-body .label:first-child { margin-top: 0; }
.modal-body p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.6; margin: 0 0 0.35rem; }
.modal-body p strong { color: var(--text-primary); }
.modal-cta { margin-top: 1rem; padding-top: 1rem; border-top: 1px solid var(--border); display: flex; flex-wrap: wrap; gap: 0.5rem; }
.modal-cta a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  font-family: var(--font);
  transition: box-shadow 0.2s, transform 0.2s;
}
.modal-cta .btn-primary { background: var(--accent); color: #fff; border: none; }
.modal-cta .btn-primary:hover { box-shadow: 0 4px 14px rgba(62, 141, 166, 0.35); transform: translateY(-1px); }
.modal-cta .btn-secondary { background: transparent; color: var(--text-secondary); border: 1px solid var(--border); }
.modal-cta .btn-secondary:hover { color: var(--accent); border-color: var(--accent); }

/* ─── Game modal ─── */
.modal-panel--game { max-width: 380px; }
.game-hud {
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}
.game-hud span { color: var(--text-primary); }
#slalomCanvas {
  display: block;
  width: 340px;
  height: 480px;
  margin: 0 auto;
  background: var(--snow);
  border-radius: 8px;
  border: 1px solid var(--border);
}
.game-restart {
  margin: 1rem 1.25rem 1.25rem;
  padding: 0.65rem 1.25rem;
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  transition: box-shadow 0.2s var(--ease);
}
.game-restart:hover { box-shadow: 0 4px 14px rgba(62, 141, 166, 0.35); }

/* ─── Responsive ─── */
@media (max-width: 640px) {
  .page { padding: 0 1rem 1.25rem; }
  .sub-scores { grid-template-columns: repeat(2, 1fr); }
  .week-grid { grid-template-columns: repeat(4, 1fr); }
  .compare-grid { grid-template-columns: 1fr; }
  .webcam-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .week-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (prefers-reduced-motion: reduce) {
  .sub-bar-fill, .day-btn, .check-btn, .share-btn, .modal-panel { transition: none; }
}