/* ============================================
   Transports Industries — Landing Page
   Flat design • Web 3.0 • Management game style
   ============================================ */

:root {
  /* Backgrounds */
  --bg-deep: #06090f;
  --bg-card: #0c111b;
  --bg-elevated: #111827;
  --bg-hover: #1a2332;

  /* Surfaces & borders */
  --border: rgba(255, 255, 255, 0.06);
  --border-accent: rgba(239, 68, 68, 0.3);

  /* Text */
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  /* Accents — tons rouges (logo, liens, highlights) */
  --accent-red: #ef4444;
  --accent-red-dark: #b91c1c;
  --accent-amber: #f59e0b;
  --accent-green: #10b981;
  --accent-glow: rgba(239, 68, 68, 0.4);

  /* Typography */
  --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Spacing & layout */
  --container: min(1200px, 92vw);
  --header-h: 64px;
  --radius: 12px;
  --radius-lg: 20px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

.noise-overlay {
  display: none;
}

/* ========== Header ========== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-h);
  z-index: 100;
  background: rgba(6, 9, 15, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background 0.25s, border-color 0.25s;
}

.header.is-scrolled {
  background: rgba(6, 9, 15, 0.95);
  border-bottom-color: rgba(255, 255, 255, 0.08);
}

.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.1rem;
}

.logo-img {
  height: 50px;
  width: auto;
  display: block;
  object-fit: contain;
}

.logo-text {
  letter-spacing: -0.02em;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 4px;
  position: relative;
}

.header-games-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: var(--radius);
  transition: color 0.2s, background 0.2s;
}

.header-games-toggle:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.header-games-arrow {
  transition: transform 0.2s;
}

.header-brand.is-open .header-games-arrow {
  transform: rotate(180deg);
}

.header-games-dropdown {
  position: absolute;
  top: 100%;
  left: 54px;
  margin-top: 4px;
  min-width: 220px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 0;
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.3);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity 0.2s, visibility 0.2s, transform 0.2s;
  z-index: 200;
}

.header-brand.is-open .header-games-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.header-games-dropdown a {
  display: block;
  padding: 10px 20px;
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: background 0.2s, color 0.2s;
}

.header-games-dropdown a:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.2s;
}

.nav a:hover {
  color: var(--text-primary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-red), var(--accent-red-dark));
  color: #fff;
}

.btn-primary:hover {
  box-shadow: 0 0 24px var(--accent-glow);
  transform: translateY(-1px);
}

.btn-cta {
  background: linear-gradient(135deg, var(--accent-amber), #ea580c);
  color: #0c0c0c;
}

.btn-cta:hover {
  box-shadow: 0 0 28px rgba(245, 158, 11, 0.4);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--border-accent);
}

.btn-large {
  padding: 16px 32px;
  font-size: 1.05rem;
}

/* ========== Hero ========== */
.hero {
  height: 100vh;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: calc(var(--header-h) + 48px) 24px 80px;
  position: relative;
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

/* Image de fond pleine hauteur */
.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('../img/hero_bg.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

/* Overlay sombre pour lisibilité du texte */
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(6, 9, 15, 0.5) 0%,
    rgba(6, 9, 15, 0.4) 40%,
    rgba(6, 9, 15, 0.7) 100%
  );
  pointer-events: none;
}

.grid-pattern {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black, transparent);
  pointer-events: none;
}

.gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.2;
  pointer-events: none;
}

.gradient-orb-1 {
  width: 500px;
  height: 500px;
  background: var(--accent-red);
  top: -20%;
  right: -10%;
}

.gradient-orb-2 {
  width: 400px;
  height: 400px;
  background: var(--accent-red-dark);
  bottom: -10%;
  left: -5%;
}

.hero-lines {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(6, 9, 15, 0.3) 70%, var(--bg-deep) 100%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 720px;
}

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.label-dot {
  width: 6px;
  height: 6px;
  background: var(--accent-green);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.2); }
}

.hero-title {
  font-size: clamp(2.8rem, 8vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.04em;
  margin-bottom: 24px;
}

.title-line {
  display: block;
}

.title-accent {
  background: linear-gradient(135deg, var(--accent-red), var(--accent-red-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 420px;
  margin: 0 auto 28px;
  line-height: 1.6;
}

.hero-btn {
  margin-top: 0;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  padding: 24px 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.stat {
  text-align: center;
}

.stat-value {
  display: block;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-primary);
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.stat-divider {
  width: 1px;
  height: 32px;
  background: var(--border);
}

/* Hero visual — dashboard preview */
.hero-visual {
  position: relative;
  z-index: 2;
  margin-top: 48px;
  width: 100%;
  max-width: 640px;
}

.dashboard-preview {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 12px;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.4);
}

.preview-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.preview-bar span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--bg-hover);
}

.preview-bar span:first-child { background: #ef4444; }
.preview-bar span:nth-child(2) { background: #eab308; }
.preview-bar span:nth-child(3) { background: #22c55e; }

.preview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.preview-card {
  height: 72px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.preview-card.wide {
  grid-column: span 2;
  height: 72px;
}

/* ========== Sections ========== */
.section {
  padding: 100px 24px;
  position: relative;
  scroll-margin-top: var(--header-h);
}

.section-fullheight {
  min-height: 100vh;
  height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-h) + 40px) 24px 40px;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
}

.container.narrow {
  max-width: 640px;
}

.section-label {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent-red);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 8px;
}

.section-byline {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 28px;
}

.section-byline-link {
  color: var(--accent-red);
  text-decoration: none;
  font-weight: 500;
}

.section-byline-link:hover {
  text-decoration: underline;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 560px;
  margin-bottom: 48px;
}

/* Features grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.section-fullheight .container {
  width: 100%;
  max-width: min(1400px, 96vw);
}

@media (min-width: 900px) {
  .section-fullheight .features-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}

.feature-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(239, 68, 68, 0.12);
  border-radius: var(--radius);
  color: var(--accent-red);
}

.feature-icon svg {
  width: 24px;
  height: 24px;
}

.feature-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Gameplay showcase */
.gameplay-showcase {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.showcase-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color 0.2s;
}

.showcase-item:hover {
  border-color: var(--border-accent);
}

.showcase-placeholder {
  height: 160px;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.showcase-placeholder .mono {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-red);
  opacity: 0.9;
}

.showcase-item p {
  padding: 20px;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* About */
.about-text {
  color: var(--text-secondary);
  font-size: 1.1rem;
  line-height: 1.75;
}

/* CTA block */
.cta-section {
  padding: 80px 24px 100px;
}

.cta-block {
  position: relative;
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.06), rgba(185, 28, 28, 0.08));
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-lg);
  padding: 64px 48px;
  text-align: center;
  overflow: hidden;
}

.cta-bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 60% at 50% 50%, rgba(239, 68, 68, 0.08), transparent);
  pointer-events: none;
}

.cta-title {
  position: relative;
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.cta-desc {
  position: relative;
  color: var(--text-secondary);
  margin-bottom: 28px;
  font-size: 1.05rem;
}

.cta-block .btn-cta {
  position: relative;
}

/* ========== Footer ========== */
.footer {
  padding: 32px 24px;
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo-small {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1rem;
  color: var(--accent-red);
  text-decoration: none;
}

.footer-copy {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-nav {
  display: flex;
  gap: 24px;
}

.footer-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
}

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

/* ========== Responsive ========== */
@media (max-width: 768px) {
  .nav {
    display: none;
  }

  .hero-stats {
    flex-direction: column;
    gap: 16px;
  }

  .stat-divider {
    width: 48px;
    height: 1px;
  }

  .cta-block {
    padding: 40px 24px;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}

/* ========== Page Play (connexion / inscription) ========== */
.page-play .play-main {
  min-height: 100vh;
  padding: calc(var(--header-h) + 40px) 24px 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background-image: url('../img/fond_play.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.page-play .play-main::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(6, 9, 15, 0.75) 0%,
    rgba(6, 9, 15, 0.6) 50%,
    rgba(6, 9, 15, 0.8) 100%
  );
  pointer-events: none;
}

.play-form-card {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 420px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.4);
}

.play-form-header {
  text-align: center;
  margin-bottom: 28px;
}

.play-form-title {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}

.play-form-subtitle {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.play-form-message {
  padding: 12px 16px;
  border-radius: var(--radius);
  margin-bottom: 20px;
  font-size: 0.9rem;
}

.play-form-message-success {
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.4);
  color: var(--accent-green);
}

.play-form-message-error {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid var(--border-accent);
  color: var(--accent-red);
}

.play-form {
  display: none;
}

.play-form.active {
  display: block;
}

.play-form-heading {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.play-form-group {
  margin-bottom: 18px;
}

.play-form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.play-form-optional {
  font-weight: 400;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.play-form-group input {
  width: 100%;
  padding: 12px 14px;
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--text-primary);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.2s;
}

.play-form-group input::placeholder {
  color: var(--text-muted);
}

.play-form-group input:focus {
  outline: none;
  border-color: var(--border-accent);
}

.play-form-submit {
  width: 100%;
  margin-top: 8px;
  margin-bottom: 0;
  padding: 14px;
}

.play-form-switch {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  text-align: center;
}

.play-form-switch-row {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.play-form-switch-row.hidden {
  display: none;
}

.play-form-switch-btn {
  background: none;
  border: none;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--accent-red);
  cursor: pointer;
  padding: 0;
  margin-left: 2px;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.play-form-switch-btn:hover {
  color: var(--text-primary);
}