/* ============================================
   DÉPANNAGE IT IDF — Feuille de styles globale
   ============================================ */

:root {
  --navy: #0a0e1a;
  --blue: #1a4fff;
  --cyan: #00d4ff;
  --light: #f0f4ff;
  --white: #ffffff;
  --gray: #8892a4;
  --card-bg: #111827;
  --border: rgba(255, 255, 255, 0.08);
  --input-bg: #0f1629;
}

/* ---- RESET & BASE ---- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html { scroll-behavior: smooth; }

body {
  background: var(--navy);
  color: var(--white);
  font-family: 'DM Sans', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

h1, h2, h3, h4 { font-family: 'Syne', sans-serif; }

/* ---- NAVIGATION ---- */
nav {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 5%;
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
}

.logo {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--white);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo span { color: var(--cyan); }

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

nav ul li a {
  color: var(--gray);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

nav ul li a:hover,
nav ul li a.active { color: var(--white); }

.nav-cta {
  background: var(--blue);
  color: var(--white) !important;
  padding: 0.5rem 1.2rem;
  border-radius: 6px;
  font-weight: 600 !important;
  transition: background 0.2s !important;
}

.nav-cta:hover {
  background: #0d3ee0 !important;
  color: var(--white) !important;
}

/* ---- ANIMATIONS ---- */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: none; }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: none; }
}

/* ---- SECTION COMMONS ---- */
section { padding: 6rem 5%; }

.section-tag {
  display: inline-block;
  color: var(--cyan);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.section-sub {
  color: var(--gray);
  max-width: 560px;
  margin-bottom: 3.5rem;
}

/* ---- BUTTONS ---- */
.btn-primary {
  background: var(--blue);
  color: var(--white);
  padding: 0.85rem 2rem;
  border-radius: 8px;
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  transition: all 0.2s;
  box-shadow: 0 0 30px rgba(26, 79, 255, 0.4);
  display: inline-block;
}

.btn-primary:hover {
  background: #0d3ee0;
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: var(--white);
  padding: 0.85rem 2rem;
  border-radius: 8px;
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  border: 1px solid var(--border);
  transition: all 0.2s;
  display: inline-block;
}

.btn-secondary:hover {
  border-color: rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.05);
}

/* ---- PAGE HEADER (inner pages) ---- */
.page-header {
  padding: 9rem 5% 4rem;
  text-align: center;
  position: relative;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 50% at 50% 30%, rgba(26, 79, 255, 0.15) 0%, transparent 70%);
}

.page-header h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  margin-bottom: 1rem;
  position: relative;
}

.page-header p {
  color: var(--gray);
  max-width: 500px;
  margin: 0 auto;
  position: relative;
}

/* ---- FORM ELEMENTS ---- */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.2rem;
}

.form-group label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--gray);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-group input,
.form-group select,
.form-group textarea {
  background: var(--input-bg);
  border: 1px solid var(--border);
  color: var(--white);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s;
  width: 100%;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--blue); }

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-group select option { background: #111827; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

/* ---- CARD BASE ---- */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
}

/* ---- FOOTER ---- */
footer {
  border-top: 1px solid var(--border);
  padding: 3rem 5%;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  color: var(--gray);
  font-size: 0.85rem;
}

footer h4 {
  font-family: 'Syne', sans-serif;
  color: var(--white);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

footer ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

footer ul li a {
  color: var(--gray);
  text-decoration: none;
  transition: color 0.2s;
}

footer ul li a:hover { color: var(--white); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 1.5rem 5%;
  text-align: center;
  color: var(--gray);
  font-size: 0.8rem;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
  nav ul { display: none; }
  footer { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
}