/* ===================================
   BASE.CSS - Styles de base et reset
   =================================== */

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

/* Note: Le reset * est déjà défini ici, 
   pas besoin de le redéfinir dans d'autres fichiers CSS */

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-white);
  overflow-x: hidden;
}

/* ===================================
   TYPOGRAPHIE DE BASE
   =================================== */

h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-md);
  /* color: var(--color-text-primary); */
}

h1 {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-extrabold);
}

h2 {
  font-size: var(--font-size-4xl);
}

h3 {
  font-size: var(--font-size-3xl);
}

h4 {
  font-size: var(--font-size-2xl);
}

h5 {
  font-size: var(--font-size-xl);
}

h6 {
  font-size: var(--font-size-lg);
}

p {
  margin-bottom: var(--spacing-md);
  line-height: var(--line-height-relaxed);
  /* color: var(--color-text-secondary); */
}

a {
  color: var(--color-blue-primary);
  text-decoration: none;
  transition: var(--transition-all);
}

a:hover {
  color: var(--color-blue-secondary);
  text-decoration: underline;
}

strong, b {
  font-weight: var(--font-weight-bold);
}

em, i {
  font-style: italic;
}

/* ===================================
   CONTENEURS ET SECTIONS
   =================================== */

section {
  width: 100%;
  padding: var(--spacing-3xl) var(--spacing-lg);
}

.container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container-fluid {
  width: 100%;
  padding: 0 var(--spacing-lg);
}

/* Titre de la section */
.section-title {
    position: relative;
    top: 40px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--color-blue-primary);
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-3xl);
    font-weight: var(--font-weight-extrabold);
    text-align: center;
    z-index: var(--z-normal);
    text-transform: uppercase;
}

.section-subtitle {
  color: var(--color-text-secondary);
  font-size: var(--font-size-4xl);
  max-width: 42rem;
  text-align: center;
  margin: 0 auto;
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-3xl);
}

/* ===================================
   BOUTONS DE BASE
   =================================== */

button {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  border: none;
  outline: none;
  background: none;
  transition: var(--transition-all);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-lg);
  font-weight: var(--font-weight-semibold);
  transition: var(--transition-all);
  box-shadow: var(--shadow-md);
}

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

.btn:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.btn-primary {
  background: var(--color-blue-gradient);
  color: var(--color-white);
}

.btn-secondary {
  background: var(--color-green-gradient);
  color: var(--color-white);
}

.btn-accent {
  background: var(--color-red-gradient);
  color: var(--color-white);
}

/* ===================================
   FORMULAIRES
   =================================== */

input, textarea, select {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  padding: var(--spacing-md);
  border: var(--border-medium);
  border-radius: var(--radius-md);
  background-color: var(--color-white);
  color: var(--color-text-primary);
  transition: var(--transition-all);
  width: 100%;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--color-blue-primary);
  box-shadow: var(--shadow-blue);
}

input::placeholder, textarea::placeholder {
  color: var(--color-text-light);
}

/* ===================================
   LISTES
   =================================== */

ul, ol {
  list-style: none;
}

ul.styled, ol.styled {
  padding-left: var(--spacing-xl);
}

ul.styled {
  list-style: disc;
}

ol.styled {
  list-style: decimal;
}

li {
  margin-bottom: var(--spacing-sm);
}

/* ===================================
   IMAGES ET MÉDIAS
   =================================== */

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

svg {
  width: 100%;
  height: auto;
}

video {
  max-width: 100%;
  height: auto;
}

/* ===================================
   SCROLLBAR PERSONNALISÉE
   =================================== */

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--color-gray-light);
  border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb {
  background: var(--color-blue-gradient);
  border-radius: var(--radius-sm);
  transition: var(--transition-all);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-blue-secondary);
}

/* Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--color-blue-primary) var(--color-gray-light);
}

/* ===================================
   SÉLECTION DE TEXTE
   =================================== */

::selection {
  background-color: var(--color-blue-primary);
  color: var(--color-white);
}

::-moz-selection {
  background-color: var(--color-blue-primary);
  color: var(--color-white);
}

/* ===================================
   CLASSES UTILITAIRES LAYOUT
   =================================== */

/* Flexbox */
.flex {
  display: flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.flex-col {
  display: flex;
  flex-direction: column;
}

/* Grid */
.grid {
  display: grid;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

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

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

/* Position */
.relative {
  position: relative;
}

.absolute {
  position: absolute;
}

.fixed {
  position: fixed;
}

/* Display */
.hidden {
  display: none;
}

.block {
  display: block;
}

.inline-block {
  display: inline-block;
}

/* Text alignment */
.text-left {
  text-align: left;
}

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

.text-right {
  text-align: right;
}

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

.overflow-auto {
  overflow: auto;
}

/* Width */
.w-full {
  width: 100%;
}

.w-screen {
  width: 100vw;
}

/* Height */
.h-full {
  height: 100%;
}

.h-screen {
  height: 100vh;
}

/* ===================================
   ANIMATIONS DE BASE
   =================================== */

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeOut {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
  }
}

@keyframes slideUp {
  from {
    transform: translateY(20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes slideDown {
  from {
    transform: translateY(-20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes scaleIn {
  from {
    transform: scale(0.9);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

.animate-fade-in {
  animation: fadeIn var(--transition-slow) var(--ease-out);
}

.animate-slide-up {
  animation: slideUp var(--transition-slow) var(--ease-out);
}

.animate-scale-in {
  animation: scaleIn var(--transition-slow) var(--ease-bounce);
}