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

:root {
  --page-bg: #0f0f14;
  --header-height: 72px;
  --tab-height: 48px;
}

html, body {
  background: var(--page-bg);
  color: #fff;
  font-family: 'Nunito', system-ui, sans-serif;
  min-height: 100vh;
}

/* ── Header ───────────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: var(--page-bg);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 1.25rem;
}

.site-title {
  font-family: 'Boogaloo', sans-serif;
  font-size: 48px;
  color: #fff;
  letter-spacing: 0.01em;
}

/* ── Tab Bar ──────────────────────────────────────────────────── */
.tab-bar {
  position: sticky;
  top: var(--header-height);
  z-index: 99;
  background: var(--page-bg);
  height: var(--tab-height);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0 1rem;
  overflow-x: auto;
  scrollbar-width: none;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.tab-bar::-webkit-scrollbar { display: none; }

.tab {
  flex-shrink: 0;
  font-family: 'Nunito', sans-serif;
  font-weight: 700;
  font-size: 18px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 6px 16px;
  border-radius: 99px;
  border: none;
  cursor: pointer;
  transition: opacity 0.2s;
  color: #fff;
  background: transparent;
  opacity: 0.4;
  filter: saturate(0.3);
}
.tab.active {
  opacity: 1;
  filter: none;
}

/* ── Card Grid ────────────────────────────────────────────────── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1rem;
  padding: 1.25rem;
}

/* ── Card ─────────────────────────────────────────────────────── */
.card {
  border-radius: 14px;
  border: 1.5px solid color-mix(in srgb, var(--cat-color) 60%, transparent);
  background: color-mix(in srgb, var(--cat-color) 8%, #0f0f14);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  cursor: default;
  will-change: transform;
  position: relative;
}

.card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
}

.card-emoji {
  font-size: 28px;
  line-height: 1;
}

.card-badge {
  font-family: 'Nunito', sans-serif;
  font-size: 16px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 3px 8px;
  border-radius: 99px;
  color: #fff;
  background: color-mix(in srgb, var(--cat-color) 70%, transparent);
  white-space: nowrap;
}

.card-name {
  font-family: 'Boogaloo', sans-serif;
  font-size: 48px;
  line-height: 1.2;
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  filter: drop-shadow(0 0 10px color-mix(in srgb, var(--cat-color) 70%, transparent));
}

.card-name-letter {
  display: inline-block;
  background: linear-gradient(90deg, #fff 0%, var(--cat-color) 40%, #fff 60%, var(--cat-color) 100%);
  background-size: 300% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 6s ease-in-out infinite, wave 2.5s ease-in-out infinite;
}

.card-name-space {
  display: inline-block;
  width: 0.28em;
}

@keyframes shimmer {
  0%   { background-position: 0% center; }
  50%  { background-position: 150% center; }
  100% { background-position: 0% center; }
}

@keyframes wave {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-5px); }
}

/* ── Timer ────────────────────────────────────────────────────── */
.card-timer {
  display: flex;
  align-items: flex-end;
  gap: 2px;
  flex-wrap: nowrap;
  margin: 0.25rem 0;
}

.timer-unit {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.timer-digits {
  font-family: 'Righteous', sans-serif;
  font-size: 36px;
  line-height: 1;
  color: #fff;
}
.timer-digits.tenths {
  font-size: 28px;
}

.timer-label {
  font-family: 'Nunito', sans-serif;
  font-size: 16px;
  font-weight: 600;
  text-transform: uppercase;
  opacity: 0.5;
  letter-spacing: 0.04em;
  line-height: 1;
  margin-top: 3px;
}

.timer-sep {
  font-family: 'Righteous', sans-serif;
  font-size: 32px;
  line-height: 1;
  align-self: center;
  padding-bottom: 20px;
  color: color-mix(in srgb, var(--cat-color) 60%, transparent);
}
.timer-sep.dot {
  font-size: 26px;
  padding-bottom: 22px;
}

/* ── Card Footer ──────────────────────────────────────────────── */
.card-date {
  font-family: 'Nunito', sans-serif;
  font-size: 20px;
  opacity: 0.55;
}

.card-note {
  font-family: 'Nunito', sans-serif;
  font-size: 14px;
  opacity: 0.45;
  font-style: italic;
}

/* ── Empty State ──────────────────────────────────────────────── */
.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 4rem 2rem;
  font-family: 'Nunito', sans-serif;
  font-size: 16px;
  opacity: 0.45;
}

/* ── Error State ──────────────────────────────────────────────── */
.load-error {
  grid-column: 1 / -1;
  text-align: center;
  padding: 4rem 2rem;
  font-family: 'Nunito', sans-serif;
  font-size: 16px;
  color: #ff6b6b;
}