/* ═══════════════════════════════════════════════════════════════════
   Kaalshodh — shared stylesheet
   Used by: index.html, astro-events.html, lunation.html
   ═══════════════════════════════════════════════════════════════════ */

/* ── Design tokens ─────────────────────────────────────────────── */
:root {
  --bg:          #0f172a;
  --card-bg:     #1e293b;
  --card-alt:    #162032;
  --border:      rgba(255,255,255,0.07);
  --text:        #f8fafc;
  --muted:       #94a3b8;
  --accent:      #38bdf8;
  --accent-glow: rgba(56,189,248,0.25);

  /* Astro-event type colours */
  --c-transit:   #818cf8;
  --c-full-moon: #fbbf24;
  --c-new-moon:  #64748b;
  --c-retro-on:  #f87171;
  --c-retro-off: #4ade80;
  --c-equinox:   #38bdf8;
  --c-solstice:  #fb923c;
  --c-sankranti: #f59e0b;
  --c-asta:      #f97316;
}

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

/* ── Body ──────────────────────────────────────────────────────── */
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Outfit', system-ui, sans-serif;
  min-height: 100vh;
}

/* ── Header ────────────────────────────────────────────────────── */
header {
  background: linear-gradient(180deg, #0a1628 0%, var(--bg) 100%);
  border-bottom: 1px solid var(--border);
  padding: 1.5rem 1.25rem 1.25rem;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
}
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.85rem;
  margin-bottom: 0.75rem;
  transition: color 0.2s;
}
.back-link:hover { color: var(--accent); }
header h1 {
  font-size: 1.6rem;
  font-weight: 600;
  background: linear-gradient(135deg, #fff 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}
header p { font-size: 0.82rem; color: var(--muted); margin-top: 0.25rem; }

/* ── Controls card ─────────────────────────────────────────────── */
.controls-wrap,
.controls {
  max-width: 680px;
  margin: 1.25rem auto 0;
  padding: 0 1rem;
}
.controls-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

/* ── Year picker ───────────────────────────────────────────────── */
.year-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.year-display {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--accent);
  min-width: 4rem;
  text-align: center;
  cursor: pointer;
  border-bottom: 1px dashed var(--accent);
}
.year-input {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--accent);
  background: rgba(255,255,255,0.07);
  border: 1px solid var(--accent);
  border-radius: 0.4rem;
  width: 5rem;
  text-align: center;
  padding: 0.1rem 0.3rem;
  outline: none;
}
.year-input::-webkit-inner-spin-button,
.year-input::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }
.year-input[type=number] { -moz-appearance: textfield; }

.nav-btn {
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 0.5rem;
  width: 2.1rem;
  height: 2.1rem;
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, border-color 0.2s;
}
.nav-btn:hover { background: rgba(56,189,248,0.12); border-color: var(--accent); }
.spacer { flex: 1; }

/* ── Custom date range (astro-events) ─────────────────────────── */
.custom-toggle-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 0.5rem;
  padding: 0.3rem 0.75rem;
  font-size: 0.8rem;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.2s;
}
.custom-toggle-btn.active,
.custom-toggle-btn:hover { border-color: var(--accent); color: var(--accent); }

.custom-range {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.custom-range input[type="date"] {
  background: var(--card-alt);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 0.5rem;
  padding: 0.35rem 0.65rem;
  font-size: 0.85rem;
  font-family: inherit;
  flex: 1;
  min-width: 130px;
  cursor: pointer;
}
.custom-range input[type="date"]:focus { outline: none; border-color: var(--accent); }
.custom-range span { color: var(--muted); font-size: 0.85rem; }
.apply-btn {
  background: var(--accent);
  color: #0f172a;
  border: none;
  border-radius: 0.5rem;
  padding: 0.35rem 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: opacity 0.2s;
}
.apply-btn:hover { opacity: 0.85; }

/* ── Filter chips ──────────────────────────────────────────────── */
.filter-section { display: flex; flex-direction: column; gap: 0.45rem; }
.filter-label { font-size: 0.75rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; }
.chips { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.chip {
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.04);
  color: var(--muted);
  border-radius: 2rem;
  padding: 0.25rem 0.7rem;
  font-size: 0.8rem;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}
.chip.active { background: rgba(255,255,255,0.1); color: var(--text); border-color: rgba(255,255,255,0.25); }
.chip[data-type="transit"].active          { border-color: var(--c-transit);   color: var(--c-transit);   background: rgba(129,140,248,0.1); }
.chip[data-type="moon_transit"].active     { border-color: var(--c-full-moon); color: var(--c-full-moon); background: rgba(251,191,36,0.08); }
.chip[data-type="full_moon"].active        { border-color: var(--c-full-moon); color: var(--c-full-moon); background: rgba(251,191,36,0.1);  }
.chip[data-type="new_moon"].active         { border-color: #94a3b8;            color: #94a3b8;            background: rgba(148,163,184,0.08);}
.chip[data-type="retrograde_start"].active { border-color: var(--c-retro-on);  color: var(--c-retro-on);  background: rgba(248,113,113,0.1); }
.chip[data-type="retrograde_end"].active   { border-color: var(--c-retro-off); color: var(--c-retro-off); background: rgba(74,222,128,0.1);  }
.chip[data-type="sankranti"].active        { border-color: var(--c-sankranti); color: var(--c-sankranti); background: rgba(245,158,11,0.1);  }
.chip[data-type="equinox"].active          { border-color: var(--c-equinox);   color: var(--c-equinox);   background: rgba(56,189,248,0.1);  }
.chip[data-type="solstice"].active         { border-color: var(--c-solstice);  color: var(--c-solstice);  background: rgba(251,146,60,0.1);  }
.chip[data-type="asta_chandra"].active     { border-color: var(--c-asta);      color: var(--c-asta);      background: rgba(249,115,22,0.1);  }
.chip[data-type="asta_grah"].active        { border-color: var(--c-asta);      color: var(--c-asta);      background: rgba(249,115,22,0.1);  }

.chip-groups { display: flex; flex-direction: column; gap: 0.75rem; }
.chip-group  { display: flex; flex-direction: column; gap: 0.4rem; }
.chip-group-chips { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; }
.group-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  min-width: 4.5rem;
  flex-shrink: 0;
}

/* ── Options row (ayanamsa, grah filter) ───────────────────────── */
.options-row { display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; }
.options-row select {
  background: var(--card-alt);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 0.5rem;
  padding: 0.3rem 0.65rem;
  font-size: 0.82rem;
  font-family: inherit;
  cursor: pointer;
  flex: 1;
  min-width: 140px;
}
.options-row select:focus { outline: none; border-color: var(--accent); }
.ayanamsa-toggle {
  display: flex;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  overflow: hidden;
}
.toggle-opt {
  background: transparent;
  border: none;
  color: var(--muted);
  padding: 0.3rem 0.8rem;
  font-size: 0.8rem;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.2s;
}
.toggle-opt.active { background: rgba(56,189,248,0.15); color: var(--accent); }

/* ── Stats bar ─────────────────────────────────────────────────── */
.stats-bar {
  max-width: 680px;
  margin: 0.75rem auto 0;
  padding: 0 1rem;
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.stat-badge {
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  border-radius: 1rem;
  border: 1px solid var(--border);
  color: var(--muted);
  white-space: nowrap;
}
.stat-badge.total { color: var(--text); border-color: rgba(255,255,255,0.2); font-weight: 600; }

/* ── Loading / Error states ────────────────────────────────────── */
.state-box {
  max-width: 680px;
  margin: 2rem auto;
  padding: 0 1rem;
  text-align: center;
  color: var(--muted);
}
.spinner {
  width: 2rem;
  height: 2rem;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 0.75rem;
}
@keyframes spin { to { transform: rotate(360deg); } }
.error-icon { font-size: 2rem; margin-bottom: 0.5rem; }

.error-state {
  max-width: 680px;
  margin: 0.75rem auto;
  padding: 0.9rem 1.1rem;
  background: rgba(248,113,113,0.08);
  border: 1px solid rgba(248,113,113,0.25);
  border-radius: 0.75rem;
  color: #f87171;
  font-size: 0.9rem;
  display: none;
}
.loading-state {
  text-align: center;
  padding: 3rem;
  color: var(--muted);
  font-size: 0.95rem;
  display: none;
}

/* ── Event cards (astro-events) ────────────────────────────────── */
.events-wrap {
  max-width: 680px;
  margin: 0.75rem auto 0;
  padding: 0 1rem;
}
.month-heading {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 1.5rem 0 0.6rem;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.month-heading::after { content: ''; flex: 1; height: 1px; background: var(--border); }

.event-card {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-left: 3px solid;
  border-radius: 0.75rem;
  padding: 0.75rem 1rem;
  margin-bottom: 0.45rem;
  transition: background 0.2s;
  cursor: default;
  position: relative;
}
.event-card:hover { filter: brightness(1.08); }

/* Tooltip */
#ev-tooltip {
  position: fixed;
  z-index: 9999;
  max-width: 260px;
  background: #1a2744;
  border: 1px solid rgba(56,189,248,0.3);
  border-radius: 0.65rem;
  padding: 0.6rem 0.85rem;
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.5;
  pointer-events: none;
  box-shadow: 0 8px 24px rgba(0,0,0,0.5);
  opacity: 0;
  transition: opacity 0.15s;
}
#ev-tooltip.visible { opacity: 1; }
#ev-tooltip strong { color: var(--text); display: block; margin-bottom: 0.2rem; }

.event-icon {
  font-size: 1.25rem;
  line-height: 1;
  width: 2rem;
  text-align: center;
  flex-shrink: 0;
  padding-top: 0.1rem;
}
.event-body { flex: 1; min-width: 0; }
.event-title {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}
.event-arrow { color: var(--muted); font-size: 0.8rem; }
.event-tag {
  font-size: 0.7rem;
  font-weight: 500;
  padding: 0.1rem 0.5rem;
  border-radius: 1rem;
  border: 1px solid;
  opacity: 0.75;
}
.event-time {
  margin-top: 0.25rem;
  font-size: 0.78rem;
  color: var(--muted);
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
}
.event-time .date-part { color: #cbd5e1; font-weight: 500; }
.event-time .utc-note  { font-size: 0.7rem; opacity: 0.6; }

/* Event card per-type colours — border + background tint */
.ev-transit          { border-left-color: var(--c-transit);   background: color-mix(in srgb, #4ade80 4%, var(--card-bg)); }
.ev-retrograde_start { border-left-color: var(--c-retro-on);  background: color-mix(in srgb, #4ade80 4%, var(--card-bg)); }
.ev-retrograde_end   { border-left-color: var(--c-retro-off); background: color-mix(in srgb, #4ade80 4%, var(--card-bg)); }
.ev-asta_grah        { border-left-color: var(--c-asta);      background: color-mix(in srgb, #f97316 5%, var(--card-bg)); }
.ev-moon_transit     { border-left-color: var(--c-full-moon); background: color-mix(in srgb, #94a3b8 5%, var(--card-bg)); }
.ev-full_moon        { border-left-color: var(--c-full-moon); background: color-mix(in srgb, #94a3b8 5%, var(--card-bg)); }
.ev-new_moon         { border-left-color: var(--c-new-moon);  background: color-mix(in srgb, #94a3b8 5%, var(--card-bg)); }
.ev-asta_chandra     { border-left-color: var(--c-asta);      background: color-mix(in srgb, #f97316 5%, var(--card-bg)); }
.ev-sankranti        { border-left-color: var(--c-sankranti); background: color-mix(in srgb, #fbbf24 4%, var(--card-bg)); }
.ev-equinox          { border-left-color: var(--c-equinox);   background: color-mix(in srgb, #fbbf24 4%, var(--card-bg)); }
.ev-solstice         { border-left-color: var(--c-solstice);  background: color-mix(in srgb, #fbbf24 4%, var(--card-bg)); }

.tag-transit          { color: var(--c-transit);   border-color: var(--c-transit);   }
.tag-moon_transit     { color: var(--c-full-moon); border-color: var(--c-full-moon); }
.tag-full_moon        { color: var(--c-full-moon); border-color: var(--c-full-moon); }
.tag-new_moon         { color: #94a3b8;             border-color: #94a3b8;            }
.tag-retrograde_start { color: var(--c-retro-on);  border-color: var(--c-retro-on);  }
.tag-retrograde_end   { color: var(--c-retro-off); border-color: var(--c-retro-off); }
.tag-sankranti        { color: var(--c-sankranti); border-color: var(--c-sankranti); }
.tag-equinox          { color: var(--c-equinox);   border-color: var(--c-equinox);   }
.tag-solstice         { color: var(--c-solstice);  border-color: var(--c-solstice);  }
.tag-asta_chandra     { color: var(--c-asta);       border-color: var(--c-asta);      }
.tag-asta_grah        { color: var(--c-asta);       border-color: var(--c-asta);      }

.empty-state { text-align: center; color: var(--muted); padding: 3rem 1rem; font-size: 0.9rem; }

/* ── Floating popups (lunation) ────────────────────────────────── */
.custom-popup {
  position: fixed;
  background: var(--card-bg);
  border: 1px solid rgba(56,189,248,0.2);
  border-radius: 0.75rem;
  padding: 1rem 1.1rem;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
  backdrop-filter: blur(12px);
  z-index: 1000;
  display: none;
  pointer-events: none;
}
.custom-popup.visible { display: block; }
.popup-label { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.07em; color: var(--muted); margin-bottom: 0.5rem; text-align: center; }

/* ── Index page ────────────────────────────────────────────────── */
body.index-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  background-image:
    radial-gradient(ellipse at 20% 30%, rgba(56,189,248,0.08) 0%, transparent 55%),
    radial-gradient(ellipse at 80% 70%, rgba(139,92,246,0.07) 0%, transparent 55%),
    radial-gradient(ellipse at 50% 100%, rgba(251,191,36,0.05) 0%, transparent 50%);
}
.index-container { max-width: 600px; text-align: center; width: 100%; }
.index-container h1 {
  font-size: 3rem;
  margin-bottom: 0.2rem;
  background: linear-gradient(135deg, #fff 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.devanagari { font-size: 1.4rem; color: var(--muted); margin: 0 0 0.6rem; letter-spacing: 0.04em; }
.tagline    { color: var(--muted); font-size: 1.1rem; margin-bottom: 2.5rem; }

.index-grid { display: grid; gap: 1.5rem; }
.index-card {
  background: var(--card-bg);
  padding: 1.5rem;
  border-radius: 1rem;
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
  border: 1px solid var(--border);
  display: block;
  text-align: left;
}
.index-card:hover { transform: translateY(-4px); border-color: var(--accent); box-shadow: 0 10px 30px var(--accent-glow); }
.index-card h3 { margin: 0 0 0.5rem; color: var(--accent); display: flex; align-items: center; gap: 0.5rem; }
.index-card p  { margin: 0; font-size: 0.9rem; color: var(--muted); }
.index-card.wip { opacity: 0.55; }
.index-card.wip:hover { opacity: 0.8; }

.wip-section { margin-top: 2.5rem; }
.wip-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  opacity: 0.5;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.wip-label::before, .wip-label::after { content: ''; flex: 1; height: 1px; background: var(--border); }

/* ── Responsive ────────────────────────────────────────────────── */
@media (max-width: 500px) {
  header h1    { font-size: 1.3rem; }
  .year-display { font-size: 1.2rem; }
}