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

:root {
  --color-bg: #0f0f13;
  --color-surface: #1a1a24;
  --color-surface-raised: #222230;
  --color-border: #2e2e40;
  --color-border-light: #3a3a52;
  --color-text: #e8e6f0;
  --color-text-muted: #9896a8;
  --color-text-dim: #6b6a7e;
  --color-accent: #FF6B35;
  --color-accent-hover: #ff8555;
  --color-accent-soft: rgba(255, 107, 53, 0.12);
  --color-accent-glow: rgba(255, 107, 53, 0.25);
  --color-green: #4ade80;
  --color-green-soft: rgba(74, 222, 128, 0.12);
  --color-yellow: #facc15;
  --color-yellow-soft: rgba(250, 204, 21, 0.12);
  --color-red: #f87171;
  --color-red-soft: rgba(248, 113, 113, 0.12);
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 18px;
  --shadow: 0 2px 16px rgba(0,0,0,0.3);
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
  --transition: 0.2s ease;
}

@media (prefers-color-scheme: light) {
  :root {
    --color-bg: #faf9f7;
    --color-surface: #ffffff;
    --color-surface-raised: #f5f3f0;
    --color-border: #e0ddd8;
    --color-border-light: #ccc8c0;
    --color-text: #1e1e24;
    --color-text-muted: #5a5868;
    --color-text-dim: #8a8898;
    --shadow: 0 2px 16px rgba(0,0,0,0.08);
    --color-accent-soft: rgba(255, 107, 53, 0.08);
    --color-green-soft: rgba(74, 222, 128, 0.08);
    --color-yellow-soft: rgba(250, 204, 21, 0.08);
    --color-red-soft: rgba(248, 113, 113, 0.08);
  }
}

html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--color-accent); text-decoration: none; transition: color var(--transition); }
a:hover, a:focus-visible { color: var(--color-accent-hover); text-decoration: underline; }

img, svg { max-width: 100%; height: auto; }

.container { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 1.5rem; }

.skip-link {
  position: absolute; top: -100%; left: 1rem;
  background: var(--color-accent); color: #fff;
  padding: 0.5rem 1rem; border-radius: var(--radius-sm);
  z-index: 100; font-weight: 600;
}
.skip-link:focus { top: 1rem; }

/* === Header === */
.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(8px);
}
.site-header .container {
  display: flex; align-items: center; justify-content: space-between;
  height: 60px; gap: 1rem;
}
.logo {
  display: flex; align-items: center; gap: 0.5rem;
  color: var(--color-text); font-weight: 700; font-size: 1.05rem;
  text-decoration: none;
}
.logo:hover, .logo:focus-visible { color: var(--color-accent); text-decoration: none; }
.logo-text { letter-spacing: -0.01em; }

.nav-list {
  display: flex; list-style: none; gap: 0.25rem;
}
.nav-link {
  padding: 0.4rem 0.75rem; border-radius: var(--radius-sm);
  color: var(--color-text-muted); font-size: 0.9rem; font-weight: 500;
  text-decoration: none; transition: all var(--transition);
}
.nav-link:hover, .nav-link:focus-visible {
  color: var(--color-text); background: var(--color-accent-soft);
  text-decoration: none;
}

/* === Sections === */
section { padding: 3.5rem 0; }
.section-header { text-align: center; margin-bottom: 2.5rem; }
.section-header h1, .section-header h2 { margin-bottom: 0.5rem; }
.section-subtitle {
  color: var(--color-text-muted); font-size: 1.05rem;
  max-width: 600px; margin: 0 auto;
}

/* === Planner === */
.section-planner { padding-top: 3rem; }
.section-planner h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800; letter-spacing: -0.02em;
}

.planner-layout {
  display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: start;
}

.planner-form-card, .planner-result-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

/* Form elements */
.form-group { margin-bottom: 1.5rem; }
.form-label {
  display: block; font-weight: 600; font-size: 0.9rem;
  margin-bottom: 0.5rem; color: var(--color-text);
}

.radio-group {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.75rem;
}
.radio-card {
  display: flex; flex-direction: column; align-items: center; gap: 0.25rem;
  padding: 1rem 0.5rem; border-radius: var(--radius);
  border: 2px solid var(--color-border);
  cursor: pointer; transition: all var(--transition);
  text-align: center;
}
.radio-card:hover { border-color: var(--color-accent); }
.radio-card input { position: absolute; opacity: 0; width: 0; height: 0; }
.radio-card:has(input:checked) {
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
}
.radio-emoji { font-size: 1.5rem; }
.radio-title { font-weight: 600; font-size: 0.85rem; }
.radio-desc { font-size: 0.75rem; color: var(--color-text-muted); }

.checkbox-group {
  display: flex; flex-wrap: wrap; gap: 0.5rem;
}
.chip {
  display: inline-flex; align-items: center;
  padding: 0.4rem 0.85rem; border-radius: 100px;
  border: 1px solid var(--color-border);
  cursor: pointer; transition: all var(--transition);
  font-size: 0.85rem; font-weight: 500;
  user-select: none;
}
.chip:hover { border-color: var(--color-accent); }
.chip input { position: absolute; opacity: 0; width: 0; height: 0; }
.chip:has(input:checked) {
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
  color: var(--color-accent);
}

.form-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1rem;
}
.form-select {
  width: 100%; padding: 0.65rem 0.85rem;
  background: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text); font-size: 0.9rem;
  font-family: var(--font); cursor: pointer;
  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'%3E%3Cpath d='M2 4l4 4 4-4' fill='none' stroke='%239896a8' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 0.75rem center;
  padding-right: 2rem;
}
.form-select:focus {
  outline: 2px solid var(--color-accent); outline-offset: 1px;
}

.presets {
  display: flex; align-items: center; gap: 0.5rem;
  flex-wrap: wrap; margin-bottom: 1.5rem;
}
.presets-label { font-size: 0.8rem; color: var(--color-text-dim); }
.preset-btn {
  padding: 0.3rem 0.75rem; border-radius: 100px;
  border: 1px solid var(--color-border);
  background: transparent; color: var(--color-text-muted);
  font-size: 0.8rem; font-family: var(--font); cursor: pointer;
  transition: all var(--transition);
}
.preset-btn:hover, .preset-btn:focus-visible {
  border-color: var(--color-accent); color: var(--color-accent);
}

.btn-primary {
  display: block; width: 100%;
  padding: 0.85rem 1.5rem;
  background: var(--color-accent); color: #fff;
  border: none; border-radius: var(--radius);
  font-size: 1rem; font-weight: 700; font-family: var(--font);
  cursor: pointer; transition: all var(--transition);
}
.btn-primary:hover, .btn-primary:focus-visible {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px var(--color-accent-glow);
}

.btn-secondary {
  padding: 0.5rem 1rem; border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: transparent; color: var(--color-text-muted);
  font-size: 0.85rem; font-family: var(--font); cursor: pointer;
  transition: all var(--transition);
}
.btn-secondary:hover, .btn-secondary:focus-visible {
  border-color: var(--color-accent); color: var(--color-accent);
}

.btn-text-danger {
  background: none; border: none; color: var(--color-red);
  font-size: 0.85rem; font-family: var(--font); cursor: pointer;
  padding: 0.5rem 0; text-decoration: underline;
}
.btn-text-danger:hover { color: #ff9999; }

/* Result card */
.result-empty {
  text-align: center; padding: 3rem 1rem;
  color: var(--color-text-muted);
}
.empty-icon { font-size: 3rem; margin-bottom: 1rem; }
.result-empty h2 { font-size: 1.2rem; margin-bottom: 0.5rem; color: var(--color-text); }

.result-badge {
  display: inline-block; padding: 0.25rem 0.75rem;
  background: var(--color-accent-soft); color: var(--color-accent);
  border-radius: 100px; font-size: 0.75rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.05em;
}
.result-header { margin-bottom: 1.5rem; }
.result-header h2 { font-size: 1.4rem; margin: 0.5rem 0 0.25rem; }
.result-date { color: var(--color-text-muted); font-size: 0.9rem; }

.result-block {
  margin-bottom: 1.25rem;
  padding: 1rem;
  background: var(--color-surface-raised);
  border-radius: var(--radius-sm);
}
.result-block h3 {
  font-size: 0.85rem; font-weight: 600;
  margin-bottom: 0.5rem; color: var(--color-text-muted);
}
.result-block ol, .result-block ul {
  padding-left: 1.25rem;
}
.result-block li { margin-bottom: 0.35rem; font-size: 0.95rem; }
.result-block p { font-size: 0.95rem; }

.result-actions {
  display: flex; gap: 0.5rem; flex-wrap: wrap;
  margin-top: 1.5rem; padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

.result-feedback {
  margin-top: 0.75rem; padding: 0.5rem 0.75rem;
  background: var(--color-green-soft); color: var(--color-green);
  border-radius: var(--radius-sm); font-size: 0.85rem;
}

/* === Calendar === */
.section-calendar {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.section-calendar h2 { font-size: 1.6rem; }

.calendar-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}
.calendar-card {
  padding: 1.25rem; border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  cursor: pointer; transition: all var(--transition);
}
.calendar-card:hover, .calendar-card:focus-visible {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-glow);
  transform: translateY(-2px);
}
.calendar-card-date {
  font-size: 0.8rem; font-weight: 600;
  color: var(--color-accent); margin-bottom: 0.25rem;
}
.calendar-card-name {
  font-weight: 700; font-size: 1rem; margin-bottom: 0.35rem;
}
.calendar-card-desc {
  font-size: 0.85rem; color: var(--color-text-muted); line-height: 1.4;
}
.calendar-card-tag {
  display: inline-block; margin-top: 0.5rem;
  padding: 0.15rem 0.5rem; border-radius: 100px;
  font-size: 0.7rem; font-weight: 600;
  background: var(--color-accent-soft); color: var(--color-accent);
}

/* === Content === */
.section-content h2 { font-size: 1.6rem; }
.content-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}
.content-card {
  padding: 1.5rem; border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}
.content-card h2 {
  font-size: 1.1rem; margin-bottom: 0.75rem;
  color: var(--color-text);
}
.content-card p {
  font-size: 0.95rem; color: var(--color-text-muted);
  margin-bottom: 0.75rem; line-height: 1.65;
}
.content-card p:last-child { margin-bottom: 0; }
.content-card strong { color: var(--color-text); }

/* === History === */
.section-history h2 { font-size: 1.6rem; }
.history-list {
  display: grid; gap: 1rem;
}
.history-card {
  padding: 1.25rem; border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}
.history-card-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 0.5rem;
}
.history-card-title { font-weight: 700; font-size: 1rem; }
.history-card-date { font-size: 0.8rem; color: var(--color-text-dim); }
.history-card-preview {
  font-size: 0.85rem; color: var(--color-text-muted);
  line-height: 1.5;
}
.history-card-actions {
  display: flex; gap: 0.5rem; margin-top: 0.75rem;
}
.history-empty {
  text-align: center; color: var(--color-text-dim);
  padding: 2rem;
}

/* === Ad Slot === */
.ad-slot-container {
  padding: 1rem 0;
  min-height: 0;
}

/* === Footer === */
.site-footer {
  margin-top: auto;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 2.5rem 0 1.5rem;
}
.footer-grid {
  display: flex; justify-content: space-between; align-items: flex-start;
  flex-wrap: wrap; gap: 1.5rem; margin-bottom: 1.5rem;
}
.footer-logo { font-weight: 700; font-size: 1rem; display: block; margin-bottom: 0.5rem; }
.footer-brand p { font-size: 0.85rem; color: var(--color-text-muted); max-width: 350px; }
.footer-nav { display: flex; gap: 1.25rem; flex-wrap: wrap; }
.footer-nav a { font-size: 0.85rem; color: var(--color-text-muted); }
.footer-nav a:hover { color: var(--color-accent); }
.footer-meta { font-size: 0.75rem; color: var(--color-text-dim); text-align: center; }

/* === Print === */
@media print {
  .site-header, .site-footer, .section-calendar, .section-content,
  .section-history, .section-planner .planner-form-card, .result-actions,
  .ad-slot-container { display: none !important; }
  body { background: #fff; color: #000; }
  .section-planner { padding: 0; }
  .planner-result-card { border: none; padding: 0; }
  .result-block { border: 1px solid #ddd; break-inside: avoid; }
}

/* === Responsive === */
@media (max-width: 768px) {
  .planner-layout { grid-template-columns: 1fr; }
  .radio-group { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .nav-list { gap: 0; }
  .nav-link { padding: 0.35rem 0.5rem; font-size: 0.8rem; }
  .content-grid { grid-template-columns: 1fr; }
  .calendar-grid { grid-template-columns: 1fr; }
  .footer-grid { flex-direction: column; }
}

@media (max-width: 480px) {
  .container { padding: 0 1rem; }
  .planner-form-card, .planner-result-card { padding: 1.25rem; }
  section { padding: 2.5rem 0; }
}

/* === Focus styles === */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* === Reduced motion === */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}



/* Factory-injected deployment helpers. The AI owns the site design above this block. */
.ad-unit {
  width: min(100%, 720px);
  min-height: 120px;
  margin: 24px auto;
  display: block;
}

.legal-page {
  width: min(900px, calc(100% - 32px));
  margin: 40px auto;
}

.factory-fallback-nav {
  width: min(900px, calc(100% - 32px));
  margin: 24px auto 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: center;
  font-size: 0.95rem;
}

.factory-fallback-nav a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}