/* =========================
   DPH Sàrl – Site officiel
   Palette : violet / orange / rouge / noir
   ========================= */

:root {
  --bg-main: #0b0b10;
  --bg-panel: rgba(255,255,255,0.06);
  --bg-panel-soft: rgba(255,255,255,0.04);

  --text-main: rgba(255,255,255,0.90);
  --text-muted: rgba(255,255,255,0.65);

  --violet: #7a3cff;
  --orange: #ff8a1d;
  --red: #ff2e2e;

  --border: rgba(255,255,255,0.12);
  --radius: 16px;
  --shadow: 0 14px 40px rgba(0,0,0,0.55);

  --max-width: 1100px;
}

/* RESET */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  min-height: 100%;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--text-main);
  background:
    radial-gradient(900px 500px at 15% 10%, rgba(122,60,255,0.25), transparent 55%),
    radial-gradient(800px 400px at 85% 20%, rgba(255,138,29,0.22), transparent 55%),
    radial-gradient(900px 600px at 70% 90%, rgba(255,46,46,0.18), transparent 55%),
    linear-gradient(180deg, #06060a 0%, #0b0b10 100%);
}

/* BASE */
a {
  color: var(--violet);
  text-decoration: none;
}
a:hover {
  color: var(--orange);
}

.wrap {
  width: min(var(--max-width), calc(100% - 40px));
  margin: 0 auto;
}

/* HEADER */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  background: linear-gradient(180deg, rgba(11,11,16,0.92), rgba(11,11,16,0.65));
  border-bottom: 1px solid var(--border);
}

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

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: rgba(0,0,0,0.35);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 6px;
}

.brand strong {
  font-size: 14px;
  letter-spacing: 0.4px;
}

.brand span {
  font-size: 12px;
  color: var(--text-muted);
}

/* MENU */
nav ul {
  list-style: none;
  display: flex;
  gap: 10px;
}

nav a {
  padding: 8px 12px;
  border-radius: 10px;
  color: var(--text-muted);
  transition: 0.2s;
}

nav a:hover,
nav a.active {
  color: var(--text-main);
  background: rgba(255,255,255,0.06);
  box-shadow: 0 0 0 3px rgba(122,60,255,0.18);
}

/* HERO */
.hero {
  padding: 48px 0 24px;
}

.heroCard {
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--bg-panel), var(--bg-panel-soft));
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  padding: 28px;
}

.hero h1 {
  font-size: clamp(24px, 3vw, 36px);
  margin-bottom: 12px;
}

.lead {
  color: var(--text-muted);
  font-size: 15.5px;
  line-height: 1.6;
  max-width: 65ch;
}

/* SECTIONS */
section {
  padding: 28px 0;
}

section h2 {
  font-size: 18px;
  margin-bottom: 14px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.card {
  background: linear-gradient(180deg, var(--bg-panel), var(--bg-panel-soft));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.card h3 {
  font-size: 15px;
  margin-bottom: 8px;
}

.card p {
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.55;
}

.accent {
  height: 2px;
  width: 48px;
  margin-top: 12px;
  background: linear-gradient(90deg, var(--violet), var(--orange), var(--red));
}

/* FOOTER */
footer {
  border-top: 1px solid var(--border);
  padding: 22px 0 32px;
  font-size: 12.5px;
  color: var(--text-muted);
  margin-top: 32px;
}

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

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