/* =========================================================
   Portfolio Kocher Damien - Styles principaux
   Version: 6.0
   ========================================================= */

/* ========== Variables CSS ========== */
:root {
  /* Couleurs principales */
  --bg: #f7f8fb;
  --panel: #ffffff;
  --text: #0f172a;
  --muted: #667085;
  --accent: #2563eb;
  --border: #e5e7eb;
  
  /* Espacements */
  --radius: 14px;
  --maxw: 1200px;
  
  /* Effets */
  --shadow: 0 4px 20px rgba(2, 6, 23, 0.06);
  --shadow-hover: 0 10px 30px rgba(2, 6, 23, 0.10);
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.18s ease;
}

/* ========== Reset & Base ========== */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font: 16px/1.6 system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

html {
  scroll-behavior: smooth;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: #1d4ed8;
}

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

button {
  font-family: inherit;
  cursor: pointer;
}

.container {
  width: min(92%, var(--maxw));
  margin-inline: auto;
}

/* ========== Header & Navigation ========== */
header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: #fff;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.brand:hover {
  color: var(--accent);
}

.brand .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
}

.menu {
  list-style: none;
  display: flex;
  gap: 18px;
  margin: 0;
  padding: 0;
}

.menu a {
  color: var(--text);
  font-weight: 500;
  padding: 8px 12px;
  border-radius: 8px;
  transition: background var(--transition-fast);
}

.menu a:hover {
  background: #f3f4f6;
}

/* ========== Boutons ========== */
.btn {
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  font-weight: 500;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.btn:hover {
  background: #f3f4f6;
  transform: translateY(-1px);
}

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

.btn--accent:hover {
  background: #1d4ed8;
  border-color: #1d4ed8;
}

/* ========== Section Hero ========== */
.hero {
  padding: min(12vh, 120px) 0 48px;
}

.wrap {
  display: grid;
  grid-template-columns: 1.25fr 0.9fr;
  gap: 32px;
  align-items: center;
}

.badge {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  background: #eef2ff;
  border: 1px solid #e0e7ff;
  color: #334155;
  font-size: 13px;
  font-weight: 500;
}

h1 {
  font-size: clamp(28px, 5vw, 52px);
  line-height: 1.1;
  margin: 12px 0 16px;
  font-weight: 800;
}

h2 {
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 700;
  margin: 0;
}

h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 0 0 12px;
}

.lead {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.7;
}

.hero-summary {
  max-width: 650px;
}

/* Portrait dans le hero */
.hero-figure {
  justify-self: end;
  max-width: 420px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: #fff;
  box-shadow: var(--shadow);
}

.hero-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 4/5;
  object-fit: cover;
  background: #fafafa;
}

/* ========== Sections ========== */
section {
  padding: 64px 0;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
}

.section-head.column {
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
}

.section-head.column h2 {
  margin-bottom: 4px;
}

.section-head.column p {
  margin-top: 0;
  margin-bottom: 16px;
}

.muted {
  color: var(--muted);
}

/* ========== Filtres (Chips) ========== */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chip {
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #fff;
  color: #334155;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition-fast), 
              border-color var(--transition-fast), 
              color var(--transition-fast);
}

.chip:hover {
  border-color: #94a3b8;
  background: #f8fafc;
}

.chip.active {
  background: #111827;
  color: #fff;
  border-color: #111827;
}

.chip:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ========== Grille de Projets ========== */
.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
}

.card {
  grid-column: span 6;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--transition-normal), 
              box-shadow var(--transition-normal);
  cursor: pointer;
}

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

.card:focus-within {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.card img {
  aspect-ratio: 16/11;
  object-fit: cover;
  background: #f1f5f9;
  width: 100%;
}

.card .info {
  padding: 14px 14px 16px;
}

.card .tag {
  font-size: 12px;
  color: var(--muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.card .title {
  font-weight: 700;
  margin: 6px 0 4px;
  font-size: 16px;
}

/* Grille responsive */
@media (min-width: 900px) {
  .card {
    grid-column: span 4;
  }
}

/* ========== Panneaux (À propos) ========== */
.about {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.panel {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}

.panel ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.panel li {
  padding: 8px 0;
  border-bottom: 1px solid #f1f5f9;
}

.panel li:last-child {
  border-bottom: none;
}

/* ========== Certifications ========== */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.cert-grid figure {
  margin: 0;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: #fff;
  transition: transform var(--transition-normal);
}

.cert-grid figure:hover {
  transform: scale(1.02);
}

.cert-grid img,
img.cert {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--border);
  border-radius: 12px;
  cursor: zoom-in;
}

/* ========== Formulaire ========== */
form {
  display: grid;
  gap: 12px;
  max-width: 560px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

label {
  font-weight: 500;
  font-size: 14px;
  color: var(--text);
}

input,
textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  font-size: 15px;
  transition: border-color var(--transition-fast), 
              box-shadow var(--transition-fast);
}

input:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

/* ========== Contact ========== */
.contact-flex {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 56px;
  align-items: start;
}

#contact form {
  max-width: 520px;
}

.contact-aside {
  background: #fff;
  border: 1px solid #d1d5db;
  border-radius: 16px;
  padding: 22px 24px;
  box-shadow: 0 2px 10px rgba(16, 24, 40, 0.04);
  align-self: center;
}

.contact-aside h3 {
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 10px 0;
  color: #1f242f;
}

.contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.contact-list li {
  display: grid;
  grid-template-columns: 20px 1fr;
  column-gap: 10px;
  align-items: start;
}

.icon {
  width: 16px;
  height: 16px;
  opacity: 0.6;
  margin-top: 2px;
  fill: #111827;
}

.contact-aside a {
  color: #0b63d1;
  text-decoration: none;
}

.contact-aside a:hover {
  text-decoration: underline;
}

/* ========== Modale ========== */
dialog {
  border: none;
  border-radius: var(--radius);
  padding: 0;
  background: #fff;
  color: var(--text);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

dialog::backdrop {
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(2px);
}

dialog[open] {
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.modal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}

.modal-body {
  display: grid;
  gap: 16px;
  padding: 16px;
}

.modal-img {
  border-radius: 12px;
  max-width: 100%;
  height: auto;
}

/* Modale spécifique projet - Agrandie pour meilleure visibilité */
dialog#projectModal {
  width: min(96vw, 1400px);
  max-height: 92vh;
}

#projectModal .modal-body {
  grid-template-columns: 1.6fr 1fr;
  gap: 32px;
  padding: 28px;
}

#projectModal .modal-img {
  border-radius: 14px;
  width: 100%;
  height: auto;
  object-fit: contain;
}

/* Mode certification (plein écran) */
#projectModal.is-cert {
  width: min(96vw, 1200px);
}

#projectModal.is-cert .modal-body {
  grid-template-columns: 1fr;
}

#projectModal.is-cert .modal-img {
  width: 100%;
  height: auto;
  max-height: 82vh;
  object-fit: contain;
  margin-inline: auto;
}

/* ========== Carrousel (Modale) ========== */
.media-wrap {
  position: relative;
}

/* Agrandissement sur très grands écrans */
@media (min-width: 1400px) {
  dialog#projectModal {
    width: min(92vw, 1600px);
  }
  #projectModal .modal-body {
    grid-template-columns: 2fr 1fr;
    gap: 40px;
  }
}

.pnav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: #111;
  color: #fff;
  border: 0;
  border-radius: 10px;
  padding: 0.4rem 0.6rem;
  cursor: pointer;
  font-size: 1.25rem;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
  transition: background 0.2s ease;
  z-index: 10;
  display: none !important; /* Masqué - navigation uniquement par miniatures */
}

.pnav.prev {
  left: 8px;
}

.pnav.next {
  right: 8px;
}

.pnav:hover {
  background: var(--accent);
}

.pnav:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

/* Miniatures du carrousel */
.p-thumbs {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 12px;
}

.p-thumbs button {
  border: 2px solid transparent;
  background: transparent;
  padding: 0;
  border-radius: 8px;
  cursor: pointer;
  transition: border-color 0.2s ease;
  position: relative;
}

.p-thumbs button:hover {
  border-color: #94a3b8;
}

.p-thumbs img {
  height: 54px;
  width: auto;
  display: block;
  border-radius: 6px;
}

.p-thumbs .is-active {
  border-color: #111;
}

.p-thumbs button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Wrapper pour les miniatures vidéo avec badge */
.video-thumb-wrapper {
  position: relative;
  display: inline-block;
}

.video-thumb-wrapper img {
  height: 54px;
  width: auto;
  display: block;
  border-radius: 6px;
}

/* Badge play sur les miniatures vidéo */
.video-badge {
  position: absolute;
  bottom: 4px;
  right: 4px;
  background: rgba(0, 0, 0, 0.75);
  color: white;
  padding: 2px 4px;
  border-radius: 3px;
  font-size: 10px;
  pointer-events: none;
  backdrop-filter: blur(4px);
}

/* Fallback icône vidéo (si pas de thumb) */
.video-icon {
  font-size: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 54px;
  width: 54px;
}

/* ========== Footer ========== */
footer {
  padding: 40px 0;
  color: var(--muted);
  text-align: center;
  border-top: 1px solid var(--border);
  background: #fff;
  font-size: 14px;
}

footer a {
  color: var(--muted);
  text-decoration: underline;
}

footer a:hover {
  color: var(--text);
}

/* ========== Responsive ========== */

/* Tablettes */
@media (max-width: 900px) {
  .wrap {
    grid-template-columns: 1fr;
  }

  .hero-figure {
    justify-self: start;
    max-width: 100%;
  }

  .about {
    grid-template-columns: 1fr;
  }

  .cert-grid {
    grid-template-columns: 1fr;
  }

  .modal-body,
  #projectModal .modal-body {
    grid-template-columns: 1fr;
  }

  .contact-flex {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  #contact form {
    max-width: 100%;
  }
}

/* Mobile */
@media (max-width: 640px) {
  .nav {
    flex-wrap: wrap;
  }

  .menu {
    order: 3;
    width: 100%;
    justify-content: center;
    padding-top: 8px;
  }

  h1 {
    font-size: 32px;
  }

  .card {
    grid-column: span 12;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
  }

  dialog#projectModal {
    width: 96vw;
  }

  #projectModal .modal-body {
    padding: 16px;
  }
}

/* ========== Améliorations d'accessibilité ========== */

/* Focus visible pour tous les éléments interactifs */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Réduction des animations pour préférences utilisateur */
@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;
  }
}

/* Amélioration du contraste en mode sombre */
@media (prefers-color-scheme: dark) {
  /* Note: Optionnel - à implémenter si souhaité */
}

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

/* ========== Print Styles ========== */
@media print {
  header,
  footer,
  .filters,
  .btn {
    display: none;
  }

  .card {
    break-inside: avoid;
  }

  body {
    background: white;
  }
}