body {
  font-family: Arial, sans-serif;
  color: #ffffff;
  background: #0a0a0f;
  line-height: 1.6;
  position: relative;
  overflow-x: hidden;
}

/* Thèmes de page par héros */

.theme-iron-man {
  background: radial-gradient(circle at top left, rgba(237, 29, 36, 0.45), transparent 55%),
              radial-gradient(circle at bottom right, rgba(255, 215, 0, 0.25), transparent 55%);
}

.theme-spider-man {
  background: radial-gradient(circle at top left, rgba(220, 53, 69, 0.4), transparent 55%),
              radial-gradient(circle at bottom right, rgba(25, 135, 84, 0.35), transparent 55%);
}

.theme-black-panther {
  background: radial-gradient(circle at top left, rgba(119, 20, 240, 0.5), transparent 55%),
              radial-gradient(circle at bottom right, rgba(56, 189, 248, 0.3), transparent 55%);
}

.theme-captain-america {
  background: radial-gradient(circle at top left, rgba(37, 99, 235, 0.5), transparent 55%),
              radial-gradient(circle at bottom right, rgba(239, 68, 68, 0.35), transparent 55%);
}

.theme-contribute {
  background: radial-gradient(circle at top left, rgba(237, 29, 36, 0.4), transparent 55%),
              radial-gradient(circle at bottom right, rgba(59, 130, 246, 0.4), transparent 55%);
}

/* Bande de dégradé global */

.page-gradient-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at top left, rgba(237, 29, 36, 0.17), transparent 55%),
    radial-gradient(circle at bottom right, rgba(59, 130, 246, 0.18), transparent 55%);
  opacity: 0.9;
  mix-blend-mode: screen;
  z-index: -1;
}

/* En-tête et navigation */

header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(10, 10, 15, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 2px solid #ed1d24;
  padding: 18px 32px;
  z-index: 1000;
}

header h1 {
  font-size: 1.7em;
  color: #ed1d24;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 8px;
  text-align: center;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  justify-content: center;
  margin: 0;
  padding: 0;
}

nav a {
  text-decoration: none;
  color: #fff;
  font-size: 0.9em;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 5px 0;
  border-bottom: 2px solid transparent;
  transition: all 0.3s;
}

nav a:hover {
  color: #ed1d24;
  border-bottom-color: #ed1d24;
}

/* Contenu principal */

main {
  margin-top: 110px;
}

/* Sections héros (bannières) */

.hero-section {
  position: relative;
  height: 52vh;
  background-attachment: fixed;
  background-position: center 25%;
  background-size: cover;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 40px;
}

.hero-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.7));
  cursor: pointer;
  transition: background 0.3s;
}

.hero-section::before:hover {
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.6));
}

.hero-section h2 {
  position: relative;
  z-index: 1;
  font-size: 3.2em;
  text-transform: uppercase;
  letter-spacing: 6px;
  text-shadow:
    0 0 12px rgba(255, 255, 255, 0.85),
    0 0 25px rgba(237, 29, 36, 0.8),
    0 0 45px rgba(237, 29, 36, 0.6);
  text-align: center;
}

/* Sections de contenu par héros */

.content-section {
  margin: 0;
  padding: 70px 40px;
  min-height: 520px;
  border-top: 3px solid rgba(255, 255, 255, 0.08);
}

/* Fond spécifique à chaque héros */

.content-section.iron-man {
  background: linear-gradient(135deg, #200204 0%, #8a0608 40%, #3b2204 100%);
  border-top-color: rgba(237, 29, 36, 0.7);
}

.content-section.spider-man {
  background: linear-gradient(135deg, #220307 0%, #b4202e 40%, #114c92 100%);
  border-top-color: rgba(180, 32, 46, 0.7);
}

.content-section.black-panther {
  background: linear-gradient(135deg, #05030a 0%, #1a0554 40%, #3f2a4b 100%);
  border-top-color: rgba(100, 78, 174, 0.7);
}

.content-section.captain-america {
  background: linear-gradient(135deg, #030713 0%, #114c92 40%, #7e1f27 100%);
  border-top-color: rgba(37, 99, 235, 0.7);
}

/* Mise en page du texte et des vignettes */

.content-layout {
  max-width: 1024px;
  margin: 0 auto 60px auto;
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 60px;
  align-items: stretch;
  position: relative;
}

.content-layout.mirror {
  grid-template-columns: minmax(0, 1fr) 280px;
}

.scenes-column {
  display: flex;
  flex-direction: column;
  gap: 30px;
  justify-content: flex-start;
}

.scenes-column.mirror {
  order: 2;
}

.text-column {
  position: relative;
}

.text-column.mirror {
  order: 1;
}

/* Ajustement de la position des layouts selon le héros */

.iron-man .content-layout {
  margin-left: 50px;
  margin-right: auto;
}

.spider-man .content-layout {
  margin-left: auto;
  margin-right: 50px;
}

.black-panther .content-layout {
  margin-left: 50px;
  margin-right: auto;
}

.captain-america .content-layout {
  margin-left: auto;
  margin-right: 50px;
}

/* Panneaux de texte */

.text-panel {
  background: rgba(255, 255, 255, 0.04);
  border: 2px solid rgba(255, 255, 255, 0.1);
  padding: 32px 40px;
  height: 100%;
  border-radius: 18px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.7);
}

.text-panel h3 {
  font-size: 1.9em;
  margin-bottom: 22px;
  text-transform: uppercase;
  letter-spacing: 2px;
  line-height: 1.3;
  text-align: left;
}

.text-panel p {
  font-size: 1.02em;
  line-height: 1.9;
  margin-bottom: 18px;
  color: rgba(255, 255, 255, 0.92);
  text-align: justify;
}

/* Vignettes de scènes */

.scene-item {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.3s, box-shadow 0.3s;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.5);
  width: 100%;
  border: 2px solid transparent;
}

.scene-item:hover,
.scene-item:focus {
  transform: translateY(-6px) scale(1.02);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.7);
  outline: 2px solid rgba(237, 29, 36, 0.6);
  outline-offset: 2px;
}

.scene-item img {
  width: 100%;
  height: 260px;
  display: block;
  object-fit: cover;
}

.scene-credit {
  position: absolute;
  bottom: 10px;
  right: 10px;
  font-size: 0.8em;
  color: #ffffff;
  text-shadow: 0 0 6px rgba(0, 0, 0, 0.9);
}

/* Bordures colorées selon les scènes et les héros */

.iron-man .scene-item:nth-child(1) {
  border-color: rgba(237, 29, 36, 0.3);
}

.iron-man .scene-item:nth-child(2) {
  border-color: rgba(255, 215, 0, 0.3);
}

.spider-man .scene-item:nth-child(1) {
  border-color: rgba(186, 87, 12, 0.3);
}

.spider-man .scene-item:nth-child(2) {
  border-color: rgba(220, 53, 69, 0.3);
}

.black-panther .scene-item:nth-child(1) {
  border-color: rgba(119, 20, 240, 0.3);
}

.black-panther .scene-item:nth-child(2) {
  border-color: rgba(147, 51, 234, 0.3);
}

.captain-america .scene-item:nth-child(1) {
  border-color: rgba(28, 80, 193, 0.3);
}

.captain-america .scene-item:nth-child(2) {
  border-color: rgba(59, 130, 246, 0.3);
}

/* Personnages détourés */

.cutout-wrapper {
  position: absolute;
  top: -60px;
  bottom: -60px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.cutout-right {
  right: -300px;
}

.cutout-left {
  left: -300px;
}

.hero-cutout {
  max-width: 300px;
  width: 200%;
  height: auto;
  display: block;
}

/* Ombres colorées des détourés */

.iron-man .hero-cutout {
  filter: drop-shadow(0 18px 45px rgba(237, 29, 36, 0.8));
}

.spider-man .hero-cutout {
  filter: drop-shadow(0 18px 45px rgba(220, 53, 69, 0.8));
}

.black-panther .hero-cutout {
  filter: drop-shadow(0 18px 45px rgba(119, 20, 240, 0.8));
}

.captain-america .hero-cutout {
  filter: drop-shadow(0 18px 45px rgba(37, 99, 235, 0.8));
}

/* Section contribution (formulaire) */

.contribute-section {
  margin: 70px 0 0 0;
  border-top: 3px solid rgba(237, 29, 36, 0.5);
  padding: 80px 40px;
  background: linear-gradient(135deg, #080811 0%, #1a1520 50%, #080811 100%);
}

.contribute-section h2 {
  font-size: 2.1em;
  color: #ed1d24;
  text-transform: uppercase;
  text-align: center;
  margin-bottom: 18px;
  letter-spacing: 2px;
}

.contribute-section > p {
  text-align: center;
  color: #aaa;
  margin-bottom: 40px;
}

.contribute-card {
  max-width: 900px;
  margin: 0 auto;
  padding: 30px 25px 35px;
  border-radius: 20px;
  background: radial-gradient(circle at top, rgba(255, 255, 255, 0.03), transparent 60%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow:
    0 30px 80px rgba(0, 0, 0, 0.8),
    0 0 0 1px rgba(255, 255, 255, 0.03);
  position: relative;
  overflow: hidden;
}

.form-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 25px;
}

.form-header-title {
  font-size: 1.1em;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.form-status-pill {
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(237, 29, 36, 0.15);
  border: 1px solid rgba(237, 29, 36, 0.6);
  font-size: 0.75em;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #ffb3b8;
}

.contribute-card form {
  max-width: 100%;
  display: grid;
  grid-template-columns: 1.1fr 1.1fr;
  gap: 25px 30px;
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

label {
  margin-bottom: 6px;
  font-size: 0.8em;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: #dddddd;
}

.required {
  color: #ed1d24;
  margin-left: 4px;
}

input,
textarea {
  padding: 12px 14px;
  background: radial-gradient(circle at top left, rgba(255, 255, 255, 0.02), rgba(0, 0, 0, 0.8));
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 10px;
  color: #ffffff;
  font-family: inherit;
  font-size: 0.95em;
  outline: none;
  transition: border-color 0.3s, box-shadow 0.3s, background 0.3s, transform 0.15s;
}

input:focus,
textarea:focus {
  border-color: #ed1d24;
  background: radial-gradient(circle at top left, rgba(237, 29, 36, 0.18), rgba(0, 0, 0, 0.9));
  box-shadow:
    0 0 0 1px rgba(237, 29, 36, 0.6),
    0 0 25px rgba(237, 29, 36, 0.35);
  transform: translateY(-1px);
}

textarea {
  min-height: 110px;
  resize: vertical;
}

.help-text {
  font-size: 0.75em;
  color: #888888;
  margin-top: 5px;
}

.error-message {
  color: #ed1d24;
  font-size: 0.8em;
  margin-top: 4px;
  min-height: 18px;
}

input.error,
textarea.error {
  border-color: #ed1d24;
  background: rgba(237, 29, 36, 0.12);
}

.submit-btn {
  grid-column: 1 / -1;
  padding: 14px 40px;
  border: none;
  border-radius: 999px;
  font-size: 0.95em;
  text-transform: uppercase;
  letter-spacing: 2px;
  cursor: pointer;
  justify-self: center;
  color: #ffffff;
  background: linear-gradient(120deg, #ed1d24 0%, #c41017 40%, #ff3b47 100%);
  box-shadow:
    0 15px 35px rgba(0, 0, 0, 0.9),
    0 0 25px rgba(237, 29, 36, 0.65);
  transition: transform 0.2s, box-shadow 0.2s;
}

.submit-btn:hover {
  transform: translateY(-2px);
  box-shadow:
    0 25px 45px rgba(0, 0, 0, 0.95),
    0 0 35px rgba(237, 29, 36, 0.9);
}

.submit-btn:active {
  transform: translateY(0);
  box-shadow:
    0 10px 25px rgba(0, 0, 0, 0.8),
    0 0 18px rgba(237, 29, 36, 0.7);
}

/* Zone de prévisualisation */

.preview-zone {
  margin-top: 35px;
  padding: 25px;
  background: rgba(0, 0, 0, 0.45);
  border-radius: 16px;
  border: 1px dashed rgba(237, 29, 36, 0.6);
  display: none;
}

.preview-zone.active {
  display: block;
}

.preview-zone h3 {
  color: #ed1d24;
  text-align: center;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 1em;
}

.success-message {
  margin-top: 18px;
  padding: 12px 18px;
  background: rgba(46, 204, 113, 0.12);
  border-radius: 999px;
  border: 1px solid #2ecc71;
  color: #2ecc71;
  text-align: center;
  font-size: 0.85em;
  display: none;
}



footer {
  margin-top: 0;
  border-top: 2px solid rgba(237, 29, 36, 0.5);
  padding: 40px;
  background: #0a0a0f;
  text-align: center;
}

footer a {
  color: #aaa;
  text-decoration: underline;
  margin: 0 10px;
  transition: color 0.3s;
}

footer a:hover {
  color: #ed1d24;
}

.copyright {
  margin-top: 15px;
  font-size: 0.85em;
  color: #666;
}

/* Modales (mentions légales et zoom) */

.modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.95);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal.active {
  display: flex;
}

.modal-content {
  background: #1a1a25;
  padding: 40px;
  border-radius: 8px;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 15px;
  right: 20px;
  font-size: 2em;
  color: #fff;
  cursor: pointer;
  background: none;
  border: none;
}

.modal-close:hover {
  color: #ed1d24;
}

.modal-content h2 {
  color: #ed1d24;
  margin-bottom: 20px;
}

.modal-content h3 {
  color: #ff3b47;
  margin-top: 20px;
  margin-bottom: 10px;
}

.modal-content p {
  line-height: 1.7;
  color: #ccc;
  margin-bottom: 10px;
}

/* Modale de zoom image */

.zoom-modal .modal-content {
  background: transparent;
  padding: 0;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.zoom-modal .close-zoom-btn {
  position: fixed;
  top: 20px;
  right: 30px;
  z-index: 2001;
}

.zoom-modal img {
  max-width: 100%;
  max-height: 75vh;
  border-radius: 5px;
  margin-bottom: 20px;
}

.zoom-description {
  max-width: 800px;
  background: rgba(0, 0, 0, 0.85);
  padding: 20px 30px;
  border-radius: 10px;
  border: 1px solid rgba(237, 29, 36, 0.3);
  text-align: center;
}

.zoom-description p {
  color: #e0e0e0;
  line-height: 1.7;
  font-size: 0.95em;
  margin: 0;
}

/* Responsive 1024px */

@media (max-width: 1024px) {
  .content-layout,
  .content-layout.mirror {
    max-width: 960px;
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 40px;
  }

  .cutout-right {
    right: -190px;
  }

  .cutout-left {
    left: -190px;
  }

  .hero-cutout {
    max-width: 260px;
  }

  header {
    padding: 14px 20px;
  }

  header h1 {
    font-size: 1.4em;
  }

  nav ul {
    gap: 14px;
  }

  main {
    margin-top: 100px;
  }

  .hero-section h2 {
    font-size: 2.4em;
    letter-spacing: 4px;
  }

  .content-section {
    padding: 50px 24px;
  }

  .content-layout,
  .content-layout.mirror {
    max-width: 700px;
    display: block;
    margin: 0 auto 50px auto;
  }

  .iron-man .content-layout,
  .spider-man .content-layout,
  .black-panther .content-layout,
  .captain-america .content-layout {
    margin-left: auto;
    margin-right: auto;
  }

  .text-column,
  .text-column.mirror {
    order: initial;
  }

  .scenes-column,
  .scenes-column.mirror {
    order: initial;
    margin-top: 26px;
  }

  .cutout-wrapper {
    position: static;
    margin: 0 auto 24px;
  }

  .hero-cutout {
    max-width: 260px;
  }

  .text-panel {
    padding: 28px 22px;
  }

  .contribute-card form {
    grid-template-columns: 1fr;
  }
}

/* Responsive 768px */

@media (max-width: 768px) {
  header {
    padding: 12px 16px;
  }

  header h1 {
    font-size: 1.2em;
  }

  nav ul {
    gap: 10px;
  }

  nav a {
    font-size: 0.8em;
  }

  .hero-section {
    height: 46vh;
    margin-bottom: 30px;
  }

  .hero-section h2 {
    font-size: 2em;
    letter-spacing: 3px;
  }

  .content-section {
    padding: 40px 16px;
  }

  .scene-item img {
    height: 200px;
  }

  .contribute-section {
    padding: 40px 16px 50px;
  }

  .modal-content {
    padding: 30px 20px;
  }
}