/* ============================================================
   MAIN.CSS — Le Campus Padel
   Variables, Reset, Typography, Layout, Utilities
   ============================================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400&family=Jost:wght@300;400;500;600&display=swap');

/* --- Design Tokens --- */
:root {
  /* Palette */
  --color-primary:       #4A6B8A;
  --color-primary-dark:  #354f68;
  --color-accent:        #C4622D;
  --color-accent-dark:   #a34e22;
  --color-accent-light:  #6DB8B0;
  --color-sand:          #D6C5A8;
  --color-sand-light:    #EDE4D6;
  --color-dark:          #1A1A1A;
  --color-dark-2:        #2C2C2C;
  --color-light:         #F8F5F0;
  --color-white:         #FFFFFF;
  --color-grey:          #6B6B6B;
  --color-grey-light:    #E8E4DF;

  /* Semantic */
  --bg-default:          var(--color-light);
  --bg-dark:             var(--color-dark);
  --bg-primary:          var(--color-primary);
  --text-primary:        var(--color-dark);
  --text-muted:          var(--color-grey);
  --text-on-dark:        var(--color-white);
  --border-subtle:       rgba(0,0,0,0.08);
  --border-sand:         var(--color-sand);

  /* Typography */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'Jost', system-ui, sans-serif;

  /* Spacing */
  --spacing-xs:  0.5rem;
  --spacing-sm:  1rem;
  --spacing-md:  2rem;
  --spacing-lg:  4rem;
  --spacing-xl:  8rem;

  /* Layout */
  --container-max:     1200px;
  --container-padding: clamp(1.5rem, 5vw, 3rem);
  --nav-height:        72px;

  /* Border Radius */
  --radius-sm:   4px;
  --radius-md:   12px;
  --radius-lg:   24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-soft:   0 4px 24px rgba(0,0,0,0.07);
  --shadow-medium: 0 8px 32px rgba(0,0,0,0.12);
  --shadow-strong: 0 12px 48px rgba(0,0,0,0.18);

  /* Transitions */
  --transition-base:  0.3s ease;
  --transition-slow:  0.5s ease;
  --transition-fast:  0.15s ease;
}

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

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

body {
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--text-primary);
  background-color: var(--bg-default);
  line-height: 1.6;
  overflow-x: hidden;
}

img, video {
  max-width: 100%;
  height: auto;
  display: block;
}

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

ul, ol {
  list-style: none;
}

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* --- Typography Scale --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
}

h1 { font-size: clamp(2.4rem, 5vw, 4rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); }
h4 { font-size: 1.2rem; }
h5 { font-size: 1rem; }

p {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--color-dark-2);
}

.text-sm   { font-size: 0.875rem; }
.text-lg   { font-size: 1.125rem; }
.text-xl   { font-size: 1.25rem; }
.text-muted { color: var(--text-muted); }

/* --- Layout Containers --- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.container--wide {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* --- Section Padding --- */
.section {
  padding: var(--spacing-lg) 0;
}

.section--xl {
  padding: var(--spacing-xl) 0;
}

.section--sm {
  padding: var(--spacing-md) 0;
}

/* --- Section Headers --- */
.section-label {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--spacing-xs);
}

.section-title {
  font-family: var(--font-display);
  color: var(--color-dark);
  margin-bottom: var(--spacing-sm);
}

.section-title--light {
  color: var(--color-white);
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 580px;
  line-height: 1.7;
}

.section-header {
  margin-bottom: var(--spacing-lg);
}

.section-header--center {
  text-align: center;
}

.section-header--center .section-subtitle {
  margin: 0 auto;
}

/* --- Grid Systems --- */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
}

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .grid-4,
  .grid-3,
  .grid-2 { grid-template-columns: 1fr; }
}

/* --- Flex Utilities --- */
.flex       { display: flex; }
.flex-col   { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-sm     { gap: var(--spacing-sm); }
.gap-md     { gap: var(--spacing-md); }

/* --- Color Utilities --- */
.bg-dark    { background-color: var(--color-dark); }
.bg-primary { background-color: var(--color-primary); }
.bg-light   { background-color: var(--color-light); }
.bg-sand    { background-color: var(--color-sand-light); }
.bg-white   { background-color: var(--color-white); }

/* --- Divider --- */
.divider {
  width: 56px;
  height: 3px;
  background-color: var(--color-accent);
  border-radius: var(--radius-full);
  margin: var(--spacing-sm) 0;
}

.divider--center {
  margin: var(--spacing-sm) auto;
}

/* --- Badges --- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  padding: 0.3em 0.9em;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.badge--accent {
  background-color: var(--color-accent);
  color: var(--color-white);
}

.badge--primary {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.badge--sand {
  background-color: var(--color-sand);
  color: var(--color-dark);
}

.badge--outline {
  border: 1.5px solid var(--color-accent);
  color: var(--color-accent);
}

/* --- Aspect Ratios --- */
.ratio-16-9  { aspect-ratio: 16/9; }
.ratio-4-3   { aspect-ratio: 4/3; }
.ratio-1-1   { aspect-ratio: 1/1; }
.ratio-3-2   { aspect-ratio: 3/2; }

/* --- Overflow --- */
.overflow-hidden { overflow: hidden; }

/* --- Object Fit --- */
.object-cover { object-fit: cover; width: 100%; height: 100%; }

/* --- Page Hero (pages secondaires) --- */
.page-hero {
  position: relative;
  min-height: 420px;
  display: flex;
  align-items: flex-end;
  padding-bottom: var(--spacing-lg);
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-accent) 100%);
  overflow: hidden;
  padding-top: var(--nav-height);
}

.page-hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.25;
}

.page-hero__pattern {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 20% 80%, rgba(196,98,45,0.3) 0%, transparent 50%),
                    radial-gradient(circle at 80% 20%, rgba(109,184,176,0.2) 0%, transparent 50%);
}

.page-hero__content {
  position: relative;
  z-index: 2;
}

.page-hero__label {
  color: var(--color-sand);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: var(--spacing-xs);
}

.page-hero__title {
  color: var(--color-white);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  margin-bottom: var(--spacing-sm);
}

.page-hero__subtitle {
  color: rgba(255,255,255,0.8);
  font-size: 1.15rem;
  max-width: 560px;
}

/* --- Scroll to top --- */
#scroll-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  background: var(--color-accent);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base), transform var(--transition-base);
  z-index: 99;
  box-shadow: var(--shadow-medium);
}

#scroll-top.visible {
  opacity: 1;
  pointer-events: auto;
}

#scroll-top:hover {
  transform: translateY(-3px);
}

/* --- Toast Notification --- */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(120%);
  background: var(--color-dark);
  color: var(--color-white);
  padding: 1rem 2rem;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 500;
  z-index: 9999;
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  box-shadow: var(--shadow-strong);
  white-space: nowrap;
  border-left: 4px solid var(--color-accent);
}

.toast.show {
  transform: translateX(-50%) translateY(0);
}

/* --- Responsive visibility --- */
@media (max-width: 768px) {
  .hide-mobile { display: none !important; }
  .section { padding: var(--spacing-md) 0; }
  .section--xl { padding: var(--spacing-lg) 0; }
}

@media (min-width: 769px) {
  .hide-desktop { display: none !important; }
}