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

:root {
  --bg: #080810;
  --surface: #0f0f1a;
  --surface2: #16162a;
  --border: #1e1e35;
  --text: #f4f4ff;
  --text-muted: #7878a0;

  /* Palette pétante */
  --violet: #a855f7;
  --violet-bright: #c084fc;
  --cyan: #22d3ee;
  --pink: #ec4899;
  --green: #4ade80;

  --accent: var(--violet);
  --accent-dim: rgba(168, 85, 247, 0.12);

  --grad: linear-gradient(135deg, #a855f7, #22d3ee);
  --grad-pink: linear-gradient(135deg, #ec4899, #a855f7);
  --grad-text: linear-gradient(90deg, #a855f7 0%, #22d3ee 60%, #ec4899 100%);

  --radius: 14px;
  --radius-sm: 9px;
  --transition: 0.2s ease;
  --shadow-glow: 0 0 40px rgba(168, 85, 247, 0.25);
  --shadow-card: 0 8px 32px rgba(0,0,0,0.5);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--violet-bright); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--cyan); }

/* ── Nav ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0 2rem;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(8, 8, 16, 0.80);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--text); }

/* ── Hero ── */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6rem 2rem 4rem;
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 55% at 50% -5%, rgba(168, 85, 247, 0.22), transparent 70%),
    radial-gradient(ellipse 45% 35% at 85% 85%, rgba(34, 211, 238, 0.12), transparent 70%),
    radial-gradient(ellipse 35% 30% at 10% 70%, rgba(236, 72, 153, 0.10), transparent 70%);
  pointer-events: none;
}

/* Grid noise overlay */
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(168,85,247,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(168,85,247,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero-content {
  text-align: center;
  max-width: 720px;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(168, 85, 247, 0.15);
  border: 1px solid rgba(168, 85, 247, 0.4);
  color: var(--violet-bright);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.35rem 1rem;
  border-radius: 100px;
  margin-bottom: 2rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  box-shadow: 0 0 20px rgba(168,85,247,0.2);
}

.hero-badge::before {
  content: '';
  width: 7px; height: 7px;
  background: var(--cyan);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--cyan);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); box-shadow: 0 0 8px var(--cyan); }
  50% { opacity: 0.6; transform: scale(0.8); box-shadow: 0 0 3px var(--cyan); }
}

h1 {
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -2px;
  color: var(--text);
  margin-bottom: 1.3rem;
}

h1 .accent {
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 480px;
  margin: 0 auto 2.5rem;
  line-height: 1.75;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.8rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  font-family: inherit;
  letter-spacing: 0.01em;
}

.btn-primary {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 4px 20px rgba(168, 85, 247, 0.4);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(168, 85, 247, 0.55);
  color: #fff;
  filter: brightness(1.1);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  color: var(--text);
  border-color: rgba(168,85,247,0.4);
  background: rgba(168,85,247,0.08);
}

.hero-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ── Services ── */
#services {
  padding: 7rem 2rem;
  max-width: 1100px;
  margin: 0 auto;
}

.section-label {
  text-align: center;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 0.8rem;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-title {
  text-align: center;
  font-size: clamp(1.9rem, 3.5vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 3.5rem;
  color: var(--text);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--grad);
  opacity: 0;
  transition: opacity var(--transition);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card), 0 0 30px rgba(168,85,247,0.12);
}
.service-card:hover::before { opacity: 1; }

.service-icon {
  width: 52px; height: 52px;
  background: rgba(168, 85, 247, 0.12);
  border: 1px solid rgba(168, 85, 247, 0.25);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.3rem;
}

.service-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
  color: var(--text);
}
.service-card p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.65; }

/* ── Portfolio ── */
#portfolio {
  padding: 7rem 2rem;
  position: relative;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

#portfolio::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 40% at 80% 20%, rgba(34, 211, 238, 0.06), transparent),
    radial-gradient(ellipse 50% 40% at 20% 80%, rgba(236, 72, 153, 0.06), transparent);
  pointer-events: none;
}

.portfolio-inner { max-width: 1200px; margin: 0 auto; position: relative; }

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.5rem;
}

.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card), 0 0 40px rgba(168,85,247,0.15);
  border-color: rgba(168, 85, 247, 0.5);
}

.project-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: var(--surface2);
  display: block;
}

.project-image-placeholder {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, var(--surface2), rgba(168,85,247,0.08));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: rgba(168,85,247,0.3);
}

.project-body { padding: 1.5rem; }

.project-date {
  font-size: 0.73rem;
  font-weight: 700;
  color: var(--cyan);
  margin-bottom: 0.5rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.project-body h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
  color: var(--text);
}

.project-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 1.2rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  font-weight: 700;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  transition: gap var(--transition);
}
.project-link:hover { gap: 0.7rem; }

.portfolio-empty {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-muted);
  grid-column: 1 / -1;
}
.portfolio-empty p { margin-top: 0.5rem; font-size: 0.9rem; }

/* ── Contact ── */
#contact {
  padding: 7rem 2rem;
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
}

.contact-intro {
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 2.5rem;
  margin-top: -1.5rem;
}

.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.5rem;
  text-align: left;
  position: relative;
  overflow: hidden;
}

.contact-form::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--grad);
}

.contact-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

.contact-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1rem;
}
.contact-field:last-child { margin-bottom: 0; }

.contact-field label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form textarea {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.95rem;
  font-family: inherit;
  padding: 0.75rem 1rem;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  resize: vertical;
  width: 100%;
}
.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--violet);
  box-shadow: 0 0 0 3px rgba(168,85,247,0.12);
}
.contact-form input::placeholder,
.contact-form textarea::placeholder { color: var(--text-muted); }

.contact-alert {
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  margin-bottom: 1rem;
}
.contact-alert.error { background: rgba(239,68,68,0.1); color: #f87171; border: 1px solid rgba(239,68,68,0.2); }
.contact-alert.success { background: rgba(74,222,128,0.1); color: var(--green); border: 1px solid rgba(74,222,128,0.2); }

.contact-submit {
  width: 100%;
  justify-content: center;
  margin-top: 1.5rem;
  padding: 0.9rem;
  font-size: 1rem;
}
.contact-submit:disabled { opacity: 0.6; cursor: not-allowed; transform: none !important; }

@media (max-width: 520px) {
  .contact-row { grid-template-columns: 1fr; }
  .contact-form { padding: 1.8rem 1.4rem; }
}

/* ── Detail modal ── */
.detail-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease;
}
.detail-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.detail-modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 100%;
  max-width: 640px;
  max-height: 88vh;
  overflow-y: auto;
  position: relative;
  transform: translateY(16px) scale(0.98);
  transition: transform 0.22s ease;
}
.detail-overlay.open .detail-modal {
  transform: translateY(0) scale(1);
}

.detail-close {
  position: absolute;
  top: 1rem; right: 1rem;
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text-muted);
  width: 2rem; height: 2rem;
  border-radius: 50%;
  font-size: 0.85rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: color var(--transition), background var(--transition);
}
.detail-close:hover { color: var(--text); background: var(--border); }

.detail-image-wrap img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius) var(--radius) 0 0;
  display: block;
}
.detail-image-wrap:empty { display: none; }

.detail-body { padding: 2rem; }

.detail-date {
  font-size: 0.73rem;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.detail-title {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text);
  margin-bottom: 1.2rem;
}

.detail-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.8;
  white-space: pre-wrap;
  margin-bottom: 1.5rem;
}

.detail-actions { display: flex; gap: 0.75rem; }

/* Carte cliquable */
.project-card { cursor: pointer; }

/* ── Footer ── */
footer {
  border-top: 1px solid var(--border);
  padding: 2rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.82rem;
}

/* ── Hamburger ── */
.nav-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.4rem;
  z-index: 110;
}
.nav-burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.22s ease, opacity 0.22s ease;
  transform-origin: center;
}
.nav-burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-burger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Responsive ── */
@media (max-width: 680px) {
  /* Nav */
  nav { padding: 0 1.2rem; }
  .nav-burger { display: flex; }

  .nav-links {
    position: fixed;
    inset: 64px 0 0 0;
    background: rgba(8, 8, 16, 0.97);
    backdrop-filter: blur(16px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2.5rem;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 0.22s ease, transform 0.22s ease;
    z-index: 105;
  }
  .nav-links.open {
    opacity: 1;
    pointer-events: all;
    transform: translateY(0);
  }
  .nav-links a { font-size: 1.2rem; font-weight: 600; }

  /* Hero */
  #hero { padding: 5rem 1.4rem 3rem; min-height: 90vh; }
  h1 { letter-spacing: -1px; }
  .hero-sub { font-size: 1rem; }
  .hero-actions { flex-direction: column; align-items: center; }
  .hero-actions .btn { width: 100%; max-width: 280px; justify-content: center; }

  /* Sections */
  #services { padding: 4rem 1.4rem; }
  #portfolio { padding: 4rem 1.4rem; }
  #contact { padding: 4rem 1.4rem; }
  .section-title { margin-bottom: 2rem; }

  /* Cards */
  .portfolio-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .service-card { padding: 1.5rem; }

  /* Contact form */
  .contact-row { grid-template-columns: 1fr; }
  .contact-form { padding: 1.5rem; }

  /* Detail modal — plein écran sur mobile */
  .detail-overlay { padding: 0; align-items: flex-end; }
  .detail-modal {
    max-height: 92vh;
    border-radius: var(--radius) var(--radius) 0 0;
    border-bottom: none;
  }

  /* Footer */
  footer { font-size: 0.78rem; }
}