/* ============================================
   plannings.fr — Design tokens & shared styles
   ============================================ */

:root {
  /* Base palette */
  --ink: #1a1a1a;
  --paper: #faf9f7;
  --cream: #f5f3ef;
  --sage: #7c8c6e;
  --sage-light: #e8ebe4;
  --sage-dark: #5a6950;
  --terracotta: #c4785a;
  --terracotta-light: #f5e6df;
  --slate: #64748b;
  --border: #e5e2dc;

  /* Surfaces */
  --surface: #ffffff;
  --surface-alt: #f0f2ed;
  --border-hover: #cccccc;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 4px 12px rgba(0,0,0,0.03);
  --shadow-sage-sm: 0 2px 8px rgba(124, 140, 110, 0.15);
  --shadow-sage: 0 4px 14px rgba(124, 140, 110, 0.35);
  --shadow-sage-lg: 0 6px 20px rgba(124, 140, 110, 0.45);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);

  /* Footer */
  --footer-border: rgba(255,255,255,0.1);
  --footer-heading: rgba(255,255,255,0.5);
  --footer-link: rgba(255,255,255,0.7);
  --footer-muted: rgba(255,255,255,0.4);

  /* Chrome (header/footer — always dark) */
  --chrome-bg: #1a1a1a;
  --chrome-text: #faf9f7;

  /* Decorative */
  --sage-wash: rgba(124, 140, 110, 0.03);
}

/* Dark mode */
@media (prefers-color-scheme: dark) {
  :root {
    /* Base palette — inverted */
    --ink: #e8e6e3;
    --paper: #1a1a1d;
    --cream: #222225;
    --sage: #8fa37f;
    --sage-light: #2d332a;
    --sage-dark: #a3b896;
    --terracotta: #d48e72;
    --terracotta-light: #2e2420;
    --slate: #94a3b8;
    --border: #2e2e32;

    /* Surfaces */
    --surface: #242428;
    --surface-alt: #2a2d28;
    --border-hover: #444449;

    /* Shadows — stronger on dark bg */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.2), 0 4px 12px rgba(0,0,0,0.15);
    --shadow-sage-sm: 0 2px 8px rgba(124, 140, 110, 0.25);
    --shadow-sage: 0 4px 14px rgba(124, 140, 110, 0.3);
    --shadow-sage-lg: 0 6px 20px rgba(124, 140, 110, 0.4);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.4);

    /* Footer — already on dark bg, lighten for contrast */
    --footer-border: rgba(255,255,255,0.08);
    --footer-heading: rgba(255,255,255,0.45);
    --footer-link: rgba(255,255,255,0.65);
    --footer-muted: rgba(255,255,255,0.35);

    /* Chrome (header/footer — slightly darker in dark mode) */
    --chrome-bg: #111113;
    --chrome-text: #e8e6e3;

    /* Decorative */
    --sage-wash: rgba(143, 163, 127, 0.05);
  }

  /* Flatpickr dark overrides */
  .flatpickr-calendar {
    background: var(--surface) !important;
    border: 1px solid var(--border);
  }

  .flatpickr-day {
    color: var(--ink) !important;
  }

  .flatpickr-day.prevMonthDay,
  .flatpickr-day.nextMonthDay {
    color: var(--slate) !important;
  }

  .flatpickr-current-month,
  .flatpickr-current-month span.cur-month,
  .flatpickr-current-month input.cur-year {
    color: var(--ink) !important;
  }

  span.flatpickr-weekday {
    color: var(--slate) !important;
  }

  .flatpickr-months .flatpickr-prev-month svg path,
  .flatpickr-months .flatpickr-next-month svg path {
    fill: var(--ink) !important;
  }
}

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

html {
  font-size: 16px;
}

body {
  font-family: 'DM Sans', -apple-system, sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Skip to content */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 200;
  padding: 0.75rem 1.5rem;
  background: var(--sage-dark);
  color: var(--surface);
  font-weight: 600;
  border-radius: 0 0 8px 8px;
  text-decoration: none;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 0;
}

/* Header */
.site-header {
  background: var(--chrome-bg);
  padding: 0.75rem 1.5rem;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--chrome-text);
}

.logo-icon {
  width: 28px;
  height: 28px;
  color: var(--sage);
}

.logo-text {
  font-family: 'Instrument Serif', Georgia, serif;
  font-size: 1.25rem;
  letter-spacing: 0.02em;
}

.logo:focus-visible {
  outline: 2px solid var(--sage);
  outline-offset: 4px;
  border-radius: 4px;
}

/* Footer */
.site-footer {
  background: var(--chrome-bg);
  color: var(--chrome-text);
  padding: 3rem 1.5rem 2rem;
  margin-top: auto;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--footer-border);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.footer-brand svg {
  width: 24px;
  height: 24px;
  color: var(--sage);
}

.footer-brand span {
  font-family: 'Instrument Serif', Georgia, serif;
  font-size: 1.1rem;
}

.footer-col h4 {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--footer-heading);
  margin-bottom: 1rem;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-col a {
  color: var(--footer-link);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}

.footer-col a:hover {
  color: var(--sage);
}

.footer-bottom {
  padding-top: 1.5rem;
  font-size: 0.85rem;
  color: var(--footer-muted);
}

/* Shared animation */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Shared button style */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.9rem 2rem;
  background: linear-gradient(135deg, var(--sage) 0%, var(--sage-dark) 100%);
  color: var(--surface);
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  border: none;
  border-radius: 10px;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  box-shadow: var(--shadow-sage);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sage-lg);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-primary:focus-visible {
  outline: 2px solid var(--sage-dark);
  outline-offset: 3px;
}

.btn-primary svg {
  width: 20px;
  height: 20px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}