/* ============================================
   Hana Retouches - CSS Principal
   Variables, Dark Mode, Animations, Layout
   ============================================ */

/* --- CSS Variables (Theming) --- */
:root {
  /* Couleurs principales */
  --primary: #8F8D9D;
  --primary-light: #AB9AAB;
  --primary-dark: #6B6A78;
  --accent: #667eea;
  --accent-dark: #5568d3;
  --green: #4DCC5A;
  --danger: #f44336;

  /* Couleurs de texte */
  --text: #2c2c2c;
  --text-light: #555;
  --text-muted: #888;

  /* Fonds */
  --bg: #8F8D9D;
  --bg-alt: #f5f6fa;
  --bg-card: #ffffff;
  --bg-header: #ffffff;
  --bg-footer: #8F8D9D;
  --bg-announcement: #AB9AAB;
  --bg-main: #AB9AAB;
  --bg-section: #938F9F;
  --bg-input: #ffffff;

  /* Ombres */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 15px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.15);
  --shadow-hover: 0 8px 25px rgba(0,0,0,0.18);

  /* Borders */
  --border: #e2e8f0;
  --radius: 10px;
  --radius-lg: 15px;
  --radius-sm: 6px;

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

/* --- Dark Mode --- */
[data-theme="dark"] {
  --primary: #7A789A;
  --primary-light: #9688A0;
  --primary-dark: #4E4D5E;
  --accent: #8B9CF7;
  --accent-dark: #7B8DE8;
  --green: #5AE068;

  --text: #e8e6f0;
  --text-light: #c4c0d0;
  --text-muted: #8a8698;

  --bg: #1a1a2e;
  --bg-alt: #16213e;
  --bg-card: #222244;
  --bg-header: #1a1a2e;
  --bg-footer: #12122a;
  --bg-announcement: #2a2a4a;
  --bg-main: #252545;
  --bg-section: #2e2e50;
  --bg-input: #2a2a4a;

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 15px rgba(0,0,0,0.35);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.4);
  --shadow-hover: 0 8px 25px rgba(0,0,0,0.45);

  --border: #3a3a5c;
}

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

html {
  font-size: 120%;
  line-height: 1.6;
  scroll-behavior: smooth;
}

body {
  font-family: 'Quicksand', Arial, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  transition: background-color var(--transition-slow), color var(--transition-slow);
  overflow-x: hidden;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-dark); }

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

/* --- Announcement Bar --- */
.announcement-bar {
  background-color: var(--bg-announcement);
  color: var(--text);
  padding: 0.8rem 0;
  overflow: hidden;
  position: relative;
  font-size: 0.95rem;
  transition: background-color var(--transition-slow);
}

.announcement-content {
  display: inline-block;
  white-space: nowrap;
  padding-left: 100%;
  animation: scroll-left 25s linear infinite;
}

@keyframes scroll-left {
  0% { transform: translateX(0); }
  100% { transform: translateX(-100%); }
}

/* --- Header --- */
.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.1rem 1rem;
  gap: 2px;
  background-color: var(--bg-header);
  border-radius: 12px;
  transition: background-color var(--transition-slow);
}

.header-left img {
  width: 150px;
  height: auto;
  border-radius: 8px;
}

.header-center {
  flex-grow: 1;
  text-align: left;
  padding-left: 1px;
}

.header-center h1 {
  font-size: 2rem;
  color: var(--text);
  font-weight: 700;
}

.header-center p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* --- Navigation --- */
.header-nav ul {
  list-style: none;
  display: flex;
  gap: 1px;
  padding: 0;
  margin: 0;
  align-items: center;
}

.header-nav a {
  text-decoration: none;
  color: var(--text);
  font-weight: 600;
  font-size: 1rem;
  padding: 0.3rem 0.6rem;
  border-radius: 2px;
  transition: all 0.4s ease-in-out;
}

.header-nav a:hover {
  padding: 0.4rem 0.6rem;
  border-radius: 10px;
  background-color: var(--green);
  transform: scale(1.1);
}

/* --- Dark Mode Toggle --- */
.theme-toggle {
  background: none;
  border: 2px solid var(--border);
  border-radius: 50%;
  width: 38px;
  height: 38px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: all var(--transition);
  color: var(--text);
  flex-shrink: 0;
}

.theme-toggle:hover {
  border-color: var(--accent);
  transform: rotate(30deg) scale(1.1);
}

/* --- Hamburger Menu --- */
.menu-toggle {
  display: none;
  position: relative;
  z-index: 1001;
  background: var(--primary);
  border-radius: 8px;
  padding: 10px;
  border: none;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 25px;
  height: 3px;
  background: var(--text);
  margin: 5px 0;
  transition: var(--transition);
  border-radius: 2px;
}

.menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(7px, -6px); }

/* --- Main Content --- */
main {
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 20px;
  min-height: 60vh;
}

/* --- Footer --- */
footer {
  background: var(--bg-footer);
  padding: 2.5rem 1rem;
  margin-top: 3rem;
  text-align: center;
  color: var(--text);
  transition: background-color var(--transition-slow);
}

.footer-content {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  text-align: left;
}

.footer-section h4 {
  margin-bottom: 0.8rem;
  font-size: 1rem;
  color: var(--text);
}

.footer-section p,
.footer-section a {
  font-size: 0.85rem;
  color: var(--text-light);
  line-height: 1.8;
}

.footer-section a:hover { color: var(--accent); }

.footer-bottom {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255,255,255,0.15);
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  padding: 0.6rem 1.2rem;
  background: var(--primary);
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  border: none;
  cursor: pointer;
  font-size: 0.95rem;
}

.btn:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: var(--text);
}

.btn-accent {
  background: var(--accent);
  color: #fff;
}

.btn-accent:hover {
  background: var(--accent-dark);
  color: #fff;
}

/* --- Section Title --- */
.section-title {
  text-align: center;
  font-size: 1.8rem;
  margin-bottom: 2rem;
  color: var(--text);
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--accent);
  margin: 0.5rem auto 0;
  border-radius: 2px;
}

/* --- Page Navigation --- */
.page-navigation {
  text-align: center;
  margin: 2.5rem 0;
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.page-navigation .btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 1.2rem;
}

/* --- Cards --- */
.card {
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 1.5rem;
  transition: all var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

/* --- Form Elements --- */
input, textarea, select {
  width: 100%;
  padding: 0.8rem;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: inherit;
  background: var(--bg-input);
  color: var(--text);
  transition: border-color var(--transition);
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15);
}

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

label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text);
  font-weight: 600;
  font-size: 0.95rem;
}

.form-group { margin-bottom: 1.5rem; }

/* --- Animations --- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

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

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-40px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}

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

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

/* Classes d'animation au scroll */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

.animate-fade-in { animation: fadeIn 0.6s ease forwards; }
.animate-fade-up { animation: fadeInUp 0.6s ease forwards; }
.animate-slide-left { animation: slideInLeft 0.6s ease forwards; }
.animate-slide-right { animation: slideInRight 0.6s ease forwards; }
.animate-scale { animation: scaleIn 0.5s ease forwards; }

/* Stagger animation delays */
.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }
.stagger-5 { animation-delay: 0.5s; }
.stagger-6 { animation-delay: 0.6s; }

/* --- Success/Error Messages --- */
.message {
  padding: 1rem 1.5rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.5rem;
  text-align: center;
  font-weight: 500;
  animation: fadeInUp 0.4s ease;
}

.message-success {
  background: #d4edda;
  color: #155724;
  border-left: 4px solid #28a745;
}

.message-error {
  background: #f8d7da;
  color: #721c24;
  border-left: 4px solid #dc3545;
}

[data-theme="dark"] .message-success {
  background: #1a3d2a;
  color: #8fd4a0;
}

[data-theme="dark"] .message-error {
  background: #3d1a1a;
  color: #f5a0a0;
}

/* --- Admin common --- */
.admin-nav {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.admin-nav .btn {
  font-size: 0.85rem;
  padding: 0.5rem 1rem;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  html { font-size: 100%; }

  .menu-toggle { display: block; }

  .header-row {
    flex-wrap: wrap;
    padding: 0.5rem 1rem;
  }

  .header-right {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  #navMenu {
    position: fixed;
    top: 0;
    right: -100%;
    flex-direction: column;
    background-color: var(--bg-card);
    width: 80%;
    height: 100vh;
    padding-top: 80px;
    z-index: 999;
    transition: right var(--transition);
    box-shadow: var(--shadow-lg);
  }

  #navMenu.active {
    right: 0;
  }

  #navMenu li {
    border-bottom: 1px solid var(--border);
    text-align: center;
  }

  #navMenu a {
    padding: 1.2rem 2rem;
    display: block;
    color: var(--text);
    font-size: 1rem;
  }

  #navMenu a::after { display: none; }

  .header-center h1 { font-size: 1.4rem; }

  .section-title { font-size: 1.4rem; }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  main { padding: 0 15px; }
}

@media (max-width: 480px) {
  .header-left img { width: 80px; }
  .header-center h1 { font-size: 1.2rem; }
  .page-navigation { flex-direction: column; align-items: center; }
}