/* =====================================================================
   LOVEBOX — base.css
   Design tokens, reset, typographie, composants communs
   ===================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,400;0,9..144,500;0,9..144,600;1,9..144,400;1,9..144,500&family=Karla:ital,wght@0,400;0,500;0,600;0,700;1,400&display=swap');

:root {
  /* --- Couleurs --- */
  --color-paper:      #F3EEE7;   /* ivoire légèrement rosé, fond principal */
  --color-paper-soft:  #EDE5DC;  /* variante pour sections alternées */
  --color-ink:        #241B26;   /* encre aubergine profonde, jamais de noir pur */
  --color-ink-soft:    #574B58;  /* texte secondaire */
  --color-rosewood:   #9C3B52;   /* accent principal, rouge-vin */
  --color-rosewood-dark: #7A2C40;
  --color-gold:       #B99359;   /* or patiné, détails précieux uniquement */
  --color-blush:      #EADCD8;   /* fonds subtils, séparateurs */
  --color-nocturne:   #1C1420;   /* thème sombre (Love Experience) */
  --color-success:    #4C7A5C;
  --color-error:      #B3453F;

  /* --- Typographie --- */
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Karla', -apple-system, BlinkMacSystemFont, sans-serif;

  --fs-hero: clamp(2.5rem, 6vw, 4.5rem);
  --fs-h1: clamp(2rem, 4vw, 3rem);
  --fs-h2: clamp(1.5rem, 3vw, 2.125rem);
  --fs-h3: 1.25rem;
  --fs-body-lg: 1.125rem;
  --fs-body: 1rem;
  --fs-small: 0.875rem;
  --fs-caption: 0.75rem;

  /* --- Espacement --- */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;

  /* --- Rayons & ombres --- */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 24px;
  --shadow-soft: 0 8px 30px rgba(36, 27, 38, 0.08);
  --shadow-card: 0 4px 20px rgba(36, 27, 38, 0.06);

  /* --- Transitions --- */
  --ease-soft: cubic-bezier(0.22, 1, 0.36, 1);
  --duration-fast: 200ms;
  --duration-base: 400ms;
  --duration-slow: 700ms;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  color: var(--color-ink);
  background: var(--color-paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, textarea, select { font: inherit; color: inherit; }
ul, ol { list-style: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* --- Typographie --- */
h1, h2, h3 { font-family: var(--font-display); font-weight: 500; line-height: 1.15; color: var(--color-ink); }
h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); font-weight: 600; }

.eyebrow {
  font-family: var(--font-body);
  font-size: var(--fs-caption);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-rosewood);
}

.lead { font-size: var(--fs-body-lg); color: var(--color-ink-soft); }

em, .accent-italic { font-family: var(--font-display); font-style: italic; color: var(--color-rosewood); }

/* --- Layout --- */
.container {
  width: 100%;
  max-width: 1080px;
  margin-inline: auto;
  padding-inline: var(--space-md);
}

.section { padding-block: var(--space-2xl); }

@media (max-width: 640px) {
  .section { padding-block: var(--space-xl); }
  .container { padding-inline: var(--space-sm); }
}

/* --- Boutons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 0.9rem 1.75rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: var(--fs-body);
  transition: transform var(--duration-fast) var(--ease-soft),
              box-shadow var(--duration-fast) var(--ease-soft),
              background var(--duration-fast) var(--ease-soft);
}

.btn:focus-visible {
  outline: 2px solid var(--color-rosewood);
  outline-offset: 3px;
}

.btn-primary {
  background: var(--color-rosewood);
  color: var(--color-paper);
  box-shadow: var(--shadow-soft);
}
.btn-primary:hover { background: var(--color-rosewood-dark); transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0) scale(0.98); }

.btn-ghost {
  background: transparent;
  color: var(--color-ink);
  border: 1px solid var(--color-ink);
}
.btn-ghost:hover { background: var(--color-ink); color: var(--color-paper); }

.btn-text {
  color: var(--color-ink-soft);
  font-weight: 500;
  padding: 0.5rem 0.25rem;
}
.btn-text:hover { color: var(--color-rosewood); }

.btn[disabled] { opacity: 0.4; pointer-events: none; }

/* --- Sceau de cire (élément signature) --- */
.seal {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3.25rem;
  height: 3.25rem;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, var(--color-rosewood-dark), var(--color-rosewood) 70%);
  box-shadow: 0 6px 16px rgba(122, 44, 64, 0.35), inset 0 -3px 6px rgba(0,0,0,0.25);
  flex-shrink: 0;
}
.seal::after {
  content: '';
  width: 1.1rem;
  height: 1.1rem;
  border: 1.5px solid rgba(243, 238, 231, 0.85);
  border-radius: 50%;
  border-right-color: transparent;
  transform: rotate(45deg);
}

/* --- Formulaires --- */
.field { margin-bottom: var(--space-md); }

.field label {
  display: block;
  font-size: var(--fs-small);
  font-weight: 600;
  color: var(--color-ink-soft);
  margin-bottom: 0.4rem;
}

.field input[type="text"],
.field textarea,
.field select {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid var(--color-blush);
  border-radius: var(--radius-sm);
  background: #fff;
  font-size: var(--fs-body);
  transition: border-color var(--duration-fast) var(--ease-soft);
}

.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  border-color: var(--color-rosewood);
}

.field .hint { font-size: var(--fs-caption); color: var(--color-ink-soft); margin-top: 0.3rem; }
.field .counter { font-size: var(--fs-caption); color: var(--color-ink-soft); text-align: right; margin-top: 0.3rem; }
.field.has-error input,
.field.has-error textarea { border-color: var(--color-error); }
.field .error-msg { font-size: var(--fs-caption); color: var(--color-error); margin-top: 0.3rem; display: none; }
.field.has-error .error-msg { display: block; }

/* --- Header / Footer sobres (layout "main") --- */
.site-header {
  padding-block: var(--space-sm);
  border-bottom: 1px solid var(--color-blush);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; }
.logo { font-family: var(--font-display); font-size: 1.35rem; font-weight: 600; display: flex; align-items: center; gap: 0.6rem; }
.logo .seal { width: 2rem; height: 2rem; }
.logo .seal::after { width: 0.7rem; height: 0.7rem; }

.site-footer {
  padding-block: var(--space-lg);
  border-top: 1px solid var(--color-blush);
  color: var(--color-ink-soft);
  font-size: var(--fs-small);
}
.site-footer .container { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: var(--space-sm); }

/* --- Utilitaires --- */
.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap;
}
.text-center { text-align: center; }
.mt-lg { margin-top: var(--space-lg); }
.mb-lg { margin-bottom: var(--space-lg); }