/* ============================================
   GLOBAL CSS — Belle Pour Son Mariage
   Reset, Variables, Typographies, Utilitaires
   ============================================ */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  font-size: 16px;
}

body {
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
}

input, button, textarea, select {
  font: inherit;
}

p, h1, h2, h3, h4, h5, h6 {
  overflow-wrap: break-word;
}

ul, ol {
  list-style: none;
}

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

button {
  cursor: pointer;
  border: none;
  background: none;
}

/* --- CSS Variables --- */
:root {
  /* Colors */
  --rose-poudre: #E8C4C8;
  --vieux-rose: #C9929B;
  --blanc-floral: #FFF8F6;
  --beige-rose: #F5E6E0;
  --vert-sauge: #B5C5B8;
  --gris-chaud: #6B5B5E;

  /* Extended palette */
  --rose-poudre-light: #F2D9DC;
  --rose-poudre-dark: #D4A8AE;
  --vieux-rose-light: #D9B0B7;
  --vieux-rose-dark: #B07A83;
  --vert-sauge-light: #CBd5CD;
  --vert-sauge-dark: #96A899;
  --blanc-pur: #FFFFFF;
  --noir-doux: #3D3235;
  --gris-moyen: #8A7A7D;

  /* Semantic colors */
  --color-primary: var(--vieux-rose);
  --color-primary-light: var(--rose-poudre);
  --color-primary-dark: var(--vieux-rose-dark);
  --color-secondary: var(--vert-sauge);
  --color-bg: var(--blanc-floral);
  --color-bg-alt: var(--beige-rose);
  --color-text: var(--gris-chaud);
  --color-text-light: var(--gris-moyen);
  --color-text-dark: var(--noir-doux);
  --color-border: var(--rose-poudre);
  --color-success: #8BB89B;
  --color-error: #D4727A;
  --color-warning: #D4B07A;

  /* Typography */
  --font-heading: 'Italiana', serif;
  --font-body: 'Lora', serif;

  /* Font sizes — fluid */
  --fs-xs: clamp(0.7rem, 0.66rem + 0.2vw, 0.8rem);
  --fs-sm: clamp(0.8rem, 0.74rem + 0.3vw, 0.9rem);
  --fs-base: clamp(0.9rem, 0.84rem + 0.3vw, 1rem);
  --fs-md: clamp(1rem, 0.9rem + 0.5vw, 1.15rem);
  --fs-lg: clamp(1.15rem, 1rem + 0.75vw, 1.4rem);
  --fs-xl: clamp(1.4rem, 1.1rem + 1.5vw, 2rem);
  --fs-2xl: clamp(1.8rem, 1.3rem + 2.5vw, 2.8rem);
  --fs-3xl: clamp(2.2rem, 1.5rem + 3.5vw, 3.8rem);

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  /* Border radius */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 40px;
  --radius-full: 9999px;
  --radius-arch: 50% 50% 0 0;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(107, 91, 94, 0.06);
  --shadow-md: 0 4px 16px rgba(107, 91, 94, 0.08);
  --shadow-lg: 0 8px 32px rgba(107, 91, 94, 0.12);
  --shadow-xl: 0 16px 48px rgba(107, 91, 94, 0.16);
  --shadow-glow: 0 0 30px rgba(201, 146, 155, 0.2);

  /* Transitions */
  --transition-fast: 200ms ease;
  --transition-base: 350ms ease;
  --transition-slow: 600ms ease;
  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Layout */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1200px;
  --container-padding: 1.25rem;

  /* Z-index scale */
  --z-behind: -1;
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-overlay: 300;
  --z-modal: 400;
  --z-toast: 500;
}

/* --- Typography --- */
body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  color: var(--color-text);
  background-color: var(--color-bg);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-text-dark);
  letter-spacing: 0.02em;
}

h1 { font-size: var(--fs-3xl); }
h2 { font-size: var(--fs-2xl); }
h3 { font-size: var(--fs-xl); }
h4 { font-size: var(--fs-lg); }
h5 { font-size: var(--fs-md); }
h6 { font-size: var(--fs-base); }

p {
  margin-bottom: var(--space-md);
  line-height: 1.75;
}

strong {
  font-weight: 600;
}

em {
  font-style: italic;
}

small {
  font-size: var(--fs-sm);
}

/* --- Links --- */
a {
  color: var(--color-primary);
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
}

/* --- Container --- */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.container--sm { max-width: var(--container-sm); }
.container--md { max-width: var(--container-md); }
.container--lg { max-width: var(--container-lg); }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.875rem 2rem;
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  cursor: pointer;
  border: 2px solid transparent;
  text-align: center;
  line-height: 1.2;
  white-space: nowrap;
}

.btn--primary {
  background-color: var(--color-primary);
  color: var(--blanc-pur);
  border-color: var(--color-primary);
}

.btn--primary:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn--secondary {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--secondary:hover {
  background-color: var(--color-primary);
  color: var(--blanc-pur);
  transform: translateY(-2px);
}

.btn--ghost {
  background-color: transparent;
  color: var(--color-text);
  border-color: transparent;
}

.btn--ghost:hover {
  color: var(--color-primary);
  background-color: rgba(201, 146, 155, 0.08);
}

.btn--white {
  background-color: var(--blanc-pur);
  color: var(--color-primary);
  border-color: var(--blanc-pur);
}

.btn--white:hover {
  background-color: var(--beige-rose);
  border-color: var(--beige-rose);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn--lg {
  padding: 1.1rem 2.5rem;
  font-size: var(--fs-base);
}

.btn--sm {
  padding: 0.6rem 1.4rem;
  font-size: var(--fs-xs);
}

.btn--full {
  width: 100%;
}

/* --- Section utilities --- */
.section {
  padding: var(--space-3xl) 0;
}

.section--alt {
  background-color: var(--color-bg-alt);
}

.section--rose {
  background-color: var(--rose-poudre-light);
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-lg);
}

.section-subtitle {
  text-align: center;
  color: var(--color-text-light);
  font-size: var(--fs-md);
  max-width: 600px;
  margin: 0 auto var(--space-2xl);
  font-style: italic;
}

/* --- Decorative elements --- */
.divider-floral {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  margin: var(--space-lg) auto;
  max-width: 200px;
}

.divider-floral::before,
.divider-floral::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--rose-poudre), transparent);
}

.divider-floral__icon {
  width: 12px;
  height: 12px;
  background: var(--rose-poudre);
  border-radius: 50% 0 50% 0;
  transform: rotate(45deg);
}

/* Petal decoration (CSS only) */
.petal {
  position: absolute;
  width: 20px;
  height: 28px;
  background: var(--rose-poudre);
  border-radius: 50% 50% 50% 0;
  opacity: 0.3;
  pointer-events: none;
}

.petal--sm {
  width: 12px;
  height: 18px;
}

.petal--lg {
  width: 30px;
  height: 42px;
}

.petal--rose { background: var(--rose-poudre); }
.petal--sauge { background: var(--vert-sauge); }
.petal--beige { background: var(--beige-rose); }

/* Blob shapes */
.blob {
  position: absolute;
  border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
  pointer-events: none;
  opacity: 0.15;
}

.blob--rose {
  background: var(--rose-poudre);
}

.blob--sauge {
  background: var(--vert-sauge);
}

.blob--beige {
  background: var(--beige-rose);
}

/* Arch shape */
.arch {
  border-radius: var(--radius-arch);
  overflow: hidden;
}

/* --- Form elements --- */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--color-text-dark);
  margin-bottom: var(--space-sm);
  letter-spacing: 0.02em;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.85rem 1.2rem;
  font-family: var(--font-body);
  font-size: var(--fs-base);
  color: var(--color-text-dark);
  background: var(--blanc-pur);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(201, 146, 155, 0.15);
}

.form-input::placeholder {
  color: var(--gris-moyen);
  opacity: 0.6;
}

.form-input--error {
  border-color: var(--color-error);
}

.form-error {
  font-size: var(--fs-xs);
  color: var(--color-error);
  margin-top: var(--space-xs);
  display: none;
}

.form-input--error + .form-error,
.form-group--error .form-error {
  display: block;
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236B5B5E' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

/* --- Animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.fade-in-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.scale-in {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.scale-in.visible {
  opacity: 1;
  transform: scale(1);
}

/* Staggered children animation */
.stagger-children .fade-in:nth-child(1) { transition-delay: 0ms; }
.stagger-children .fade-in:nth-child(2) { transition-delay: 100ms; }
.stagger-children .fade-in:nth-child(3) { transition-delay: 200ms; }
.stagger-children .fade-in:nth-child(4) { transition-delay: 300ms; }
.stagger-children .fade-in:nth-child(5) { transition-delay: 400ms; }
.stagger-children .fade-in:nth-child(6) { transition-delay: 500ms; }
.stagger-children .fade-in:nth-child(7) { transition-delay: 600ms; }
.stagger-children .fade-in:nth-child(8) { transition-delay: 700ms; }

/* Float animation for decorative elements */
@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  33% { transform: translateY(-8px) rotate(2deg); }
  66% { transform: translateY(4px) rotate(-1deg); }
}

@keyframes float-slow {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-12px) rotate(3deg); }
}

@keyframes pulse-soft {
  0%, 100% { opacity: 0.15; transform: scale(1); }
  50% { opacity: 0.25; transform: scale(1.05); }
}

@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

/* --- Utility classes --- */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--color-primary); }
.text-light { color: var(--color-text-light); }
.text-dark { color: var(--color-text-dark); }
.text-white { color: var(--blanc-pur); }

.bg-white { background-color: var(--blanc-pur); }
.bg-alt { background-color: var(--color-bg-alt); }
.bg-rose { background-color: var(--rose-poudre-light); }

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }

.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* --- Scrollbar styling --- */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--beige-rose);
}

::-webkit-scrollbar-thumb {
  background: var(--rose-poudre);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--vieux-rose);
}

/* --- Selection --- */
::selection {
  background: var(--rose-poudre);
  color: var(--color-text-dark);
}