:root {
  color-scheme: dark;
  --ink: #f1f5f9;
  --ink-secondary: #cbd5e1;
  --muted: #94a3b8;
  --panel: rgba(30, 41, 59, 0.9);
  --panel-hover: rgba(51, 65, 85, 0.9);
  --accent: #ff6b1a;
  --accent-dark: #ea580c;
  --accent-glow: rgba(255, 107, 26, 0.3);
  --mint: #2dd4bf;
  --mint-muted: rgba(45, 212, 191, 0.15);
  --shadow: 0 22px 60px rgba(0, 0, 0, 0.4);
  --radius: 20px;
  --grid: rgba(255, 255, 255, 0.03);
  --border: rgba(255, 255, 255, 0.1);
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
}

* {
  box-sizing: border-box;
}

/* Top Navigation */
.top-nav {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 980px;
  margin: 0 auto;
  padding: 20px 20px 0;
}

.top-nav a {
  color: var(--ink-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.top-nav a:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--ink);
}

body {
  margin: 0;
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  color: var(--ink);
  background: linear-gradient(135deg, var(--bg-primary) 0%, #1a1a2e 50%, var(--bg-secondary) 100%);
  min-height: 100vh;
  overflow-x: hidden;
}

.bg-orbit {
  position: fixed;
  top: -180px;
  left: -140px;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(255, 107, 26, 0.15), transparent 65%);
  filter: blur(60px);
  z-index: 0;
}

.bg-grid {
  position: fixed;
  inset: 0;
  background-image: linear-gradient(120deg, transparent 0%, transparent 47%, var(--grid) 48%, transparent 49%),
    linear-gradient(300deg, transparent 0%, transparent 47%, var(--grid) 48%, transparent 49%);
  background-size: 120px 120px;
  opacity: 0.5;
  pointer-events: none;
  z-index: 0;
}

.page {
  position: relative;
  z-index: 1;
  max-width: 980px;
  margin: 0 auto;
  padding: 44px 20px 80px;
  display: grid;
  gap: 32px;
}

.hero {
  display: grid;
  gap: 16px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  width: fit-content;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border);
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  color: var(--ink-secondary);
}

.badge-link {
  text-decoration: none;
  color: inherit;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.badge-link:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.2);
}

.badge-link svg {
  opacity: 0.6;
}

h1 {
  font-family: "Fraunces", "Georgia", serif;
  font-size: clamp(2.6rem, 4vw, 3.4rem);
  margin: 0;
  color: var(--ink);
}

.subtitle {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 650px;
}

/* Callout / Warning Box */
.callout {
  display: flex;
  gap: 12px;
  padding: 16px 20px;
  border-radius: 14px;
  background: rgba(251, 191, 36, 0.1);
  border: 1px solid rgba(251, 191, 36, 0.3);
}

.callout-warning {
  background: rgba(251, 191, 36, 0.1);
  border-color: rgba(251, 191, 36, 0.3);
}

.callout-icon {
  flex-shrink: 0;
  color: #fbbf24;
}

.callout-content {
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--ink-secondary);
}

.callout-content strong {
  color: var(--ink);
}

.callout-content a {
  color: var(--accent);
}

.card {
  background: var(--panel);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
}

/* Mode Toggle */
.mode-toggle {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  padding: 4px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 12px;
  width: fit-content;
}

.mode-btn {
  padding: 10px 18px;
  border: none;
  border-radius: 10px;
  background: transparent;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
  color: var(--muted);
}

.mode-btn:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--ink-secondary);
}

.mode-btn.active {
  background: var(--bg-secondary);
  color: var(--ink);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.form {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  align-items: end;
}

.form.hidden {
  display: none;
}

.field {
  display: grid;
  gap: 8px;
}

label {
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--ink-secondary);
}

select {
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  font-size: 1rem;
  background: var(--bg-secondary);
  color: var(--ink);
  cursor: pointer;
}

select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

select:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.primary-btn {
  padding: 14px 18px;
  border: none;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: white;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.primary-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px var(--accent-glow);
}

.results {
  display: grid;
  gap: 20px;
}

.result-card {
  display: grid;
  gap: 16px;
}

.result-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.result-card h2 {
  margin: 0;
  font-family: "Fraunces", "Georgia", serif;
  font-size: 1.6rem;
  color: var(--ink);
}

.keyline {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  font-weight: 500;
}

.keyline span {
  background: rgba(255, 255, 255, 0.08);
  padding: 6px 12px;
  border-radius: 999px;
  color: var(--ink-secondary);
}

.summary-banner {
  background: var(--mint-muted);
  border: 1px solid rgba(45, 212, 191, 0.3);
  color: var(--mint);
  padding: 12px 16px;
  border-radius: 14px;
  font-weight: 600;
}

.reporting-line {
  display: grid;
  gap: 6px;
}

.reporting-title {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.chip {
  width: fit-content;
  background: rgba(255, 107, 26, 0.15);
  border: 1px solid rgba(255, 107, 26, 0.3);
  color: var(--accent);
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.85rem;
}

.tag {
  font-size: 0.8rem;
  padding: 4px 10px;
  border-radius: 999px;
  font-weight: 600;
}

.tag-most {
  background: rgba(45, 212, 191, 0.15);
  color: #5eead4;
  border: 1px solid rgba(45, 212, 191, 0.35);
}

.tag-second {
  background: rgba(96, 165, 250, 0.15);
  color: #93c5fd;
  border: 1px solid rgba(96, 165, 250, 0.35);
}

.tag-possible {
  background: rgba(255, 255, 255, 0.08);
  color: var(--muted);
  border: 1px solid var(--border);
}

.table-wrapper {
  overflow-x: auto;
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.96rem;
}

.table th,
.table td {
  text-align: left;
  padding: 10px 8px;
  border-bottom: 1px solid var(--border);
}

.table th {
  font-weight: 600;
  color: var(--ink-secondary);
}

.table td {
  color: var(--ink);
}

/* Calendar Export Buttons */
.calendar-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.calendar-label {
  font-size: 0.9rem;
  color: var(--muted);
  font-weight: 500;
}

.cal-btn {
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-secondary);
  color: var(--ink-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.cal-btn:hover {
  background: rgba(255, 107, 26, 0.1);
  border-color: var(--accent);
  color: var(--accent);
}

/* Share Button */
.share-section {
  display: flex;
  align-items: center;
  gap: 10px;
}

.share-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-secondary);
  color: var(--ink-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.share-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
}

.share-confirm {
  font-size: 0.85rem;
  color: var(--mint);
  font-weight: 600;
}

.hidden {
  display: none !important;
}

/* Reverse Lookup Styles */
.deros-months-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.deros-month-chip {
  padding: 10px 18px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: white;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
}

.hint {
  font-size: 0.9rem;
  color: var(--muted);
  font-style: italic;
}

.error {
  color: #f87171;
  font-weight: 500;
}

/* Mobile Cycle Cards */
.mobile-cycles {
  display: grid;
  gap: 16px;
}

.mobile-cycle-card {
  background: rgba(0, 0, 0, 0.2);
  border-radius: 14px;
  padding: 16px;
  border: 1px solid var(--border);
}

.mobile-cycle-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

.mobile-cycle-grid {
  display: grid;
  gap: 10px;
}

.mobile-cycle-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.mobile-cycle-label {
  font-size: 0.9rem;
  color: var(--muted);
}

.mobile-cycle-value {
  font-weight: 600;
  color: var(--ink);
}

/* Desktop/Mobile visibility */
.desktop-only {
  display: block;
}

.mobile-only {
  display: none;
}

.note {
  display: grid;
  gap: 12px;
}

.note h2 {
  color: var(--ink);
}

.note p {
  color: var(--ink-secondary);
}

.note a {
  color: var(--accent);
}

.disclaimer {
  font-size: 0.92rem;
  color: var(--muted);
}

.fade-in {
  animation: fadeInUp 0.5s ease both;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Mobile Styles */
@media (max-width: 700px) {
  .card {
    padding: 22px;
  }

  .keyline {
    flex-direction: column;
    align-items: flex-start;
  }

  .desktop-only {
    display: none;
  }

  .mobile-only {
    display: block;
  }

  .result-header {
    flex-direction: column;
  }

  .calendar-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .mode-toggle {
    width: 100%;
  }

  .mode-btn {
    flex: 1;
    text-align: center;
  }
}

/* Print Styles */
@media print {
  body {
    background: white;
    color: black;
    font-size: 12pt;
  }

  .top-nav,
  .bg-orbit,
  .bg-grid {
    display: none;
  }

  .page {
    padding: 0;
    max-width: 100%;
  }

  .card {
    box-shadow: none;
    border: 1px solid #ccc;
    background: white;
    page-break-inside: avoid;
  }

  .callout {
    border: 1px solid #ccc;
    background: #fffbeb;
  }

  .callout-content,
  .callout-content strong {
    color: #1f2937;
  }

  .primary-btn,
  .cal-btn,
  .share-btn,
  .share-section,
  .calendar-actions,
  .mode-toggle {
    display: none !important;
  }

  .form-card {
    display: none;
  }

  .results {
    margin-top: 0;
  }

  .result-card {
    border: 1px solid #ddd;
    padding: 20px;
  }

  .result-card h2,
  .note h2 {
    color: #1f2937;
  }

  .keyline span {
    background: #f3f4f6;
    color: #374151;
  }

  .summary-banner {
    background: #d1fae5;
    border: 1px solid #10b981;
    color: #065f46;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  .tag-most {
    background: #d1fae5;
    color: #065f46;
  }

  .tag-second {
    background: #dbeafe;
    color: #1e40af;
  }

  .tag-possible {
    background: #f3f4f6;
    color: #374151;
  }

  .chip {
    background: #ffedd5;
    color: #9a3412;
  }

  .deros-month-chip {
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  .table {
    font-size: 11pt;
  }

  .table th {
    color: #374151;
  }

  .table td {
    color: #1f2937;
  }

  .table th,
  .table td {
    border: 1px solid #ccc;
    padding: 8px;
  }

  .note p,
  .disclaimer,
  .hint {
    color: #4b5563;
  }

  .mobile-only {
    display: none !important;
  }

  .desktop-only {
    display: block !important;
  }

  a {
    text-decoration: none;
    color: inherit;
  }

  a[href]::after {
    content: none;
  }
}