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

body {
    font-family: Arial, Helvetica, sans-serif;
    background: #0b1020;
    color: #f3f4f6;
    line-height: 1.6;
}

a {
    color: #38bdf8;
    text-decoration: none;
}
a:hover {
    text-decoration: underline;
}

main {
    padding-bottom: 2.5rem;
}

/* ====== LAYOUT GLOBAL ====== */
.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 3rem 0 2.5rem;
}

.section-intro {
    font-size: 0.95rem;
    color: #d1d5db;
    margin-bottom: 1.5rem;
}

/* ====== HEADER & MENU ====== */
header {
    background: rgba(11,16,32,0.95);
    border-bottom: 1px solid #1f2933;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 10;
}

.logo-box {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-img {
    height: 40px;
    width: auto;
}

.logo {
    font-size: 1.4rem;
    font-weight: bold;
    letter-spacing: 0.05em;
    color: #38bdf8;
    text-transform: uppercase;
}

.tagline {
    font-size: 0.9rem;
    color: #9ca3af;
}

nav.menu {
    margin-top: 0.6rem;
    display: flex;
    flex-wrap: wrap;
    gap: 1.2rem;
}

nav.menu a {
    color: #d1d5db;
    font-size: 0.95rem;
    font-weight: 500;
    transition: 0.2s;
}
nav.menu a:hover {
    color: #38bdf8;
}

/* ====== HERO GÉNÉRIQUE ====== */
.hero {
    padding: 4rem 0 3rem;
    background: radial-gradient(circle at top left, #1f2937 0, #020617 55%, #000 100%);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 2.5rem;
}

.hero h1 {
    font-size: 2.4rem;
    margin-bottom: 1rem;
}
.hero h1 span {
    color: #38bdf8;
}

.hero p.lead {
    font-size: 1.05rem;
    color: #d1d5db;
    margin-bottom: 1.5rem;
}

.pill {
    display: inline-flex;
    align-items: center;
    padding: 0.35rem 0.8rem;
    border-radius: 999px;
    background: rgba(56,189,248,0.1);
    color: #38bdf8;
    font-size: 0.8rem;
    margin-bottom: 0.75rem;
}
.pill span {
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 999px;
    background: #22c55e;
    margin-right: 0.4rem;
}

/* ====== CTA / BOUTONS ====== */
.cta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
}

.btn {
    display: inline-block;
    padding: 0.9rem 1.7rem;
    border-radius: 999px;
    font-weight: 600;
    border: 1px solid transparent;
    cursor: pointer;
    font-size: 0.95rem;
}
.btn-primary {
    background: linear-gradient(135deg, #38bdf8, #0ea5e9);
    color: #0b1020;
}
.btn-outline {
    border-color: #4b5563;
    color: #e5e7eb;
}

/* ====== CARTES HERO / SECTIONS ====== */
.hero-card {
    background: rgba(15, 23, 42, 0.95);
    border-radius: 1rem;
    padding: 1.5rem;
    border: 1px solid rgba(55, 65, 81, 0.8);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
    font-size: 0.9rem;
}

.hero-card h2 {
    font-size: 1.05rem;
    margin-bottom: 0.6rem;
    color: #e5e7eb;
}

.hero-card ul {
    list-style: none;
    margin-top: 0.7rem;
}

.hero-card li {
    display: flex;
    align-items: flex-start;
    gap: 0.35rem;
    margin-bottom: 0.35rem;
    color: #cbd5f5;
}
.hero-card li::before {
    content: "•";
    color: #38bdf8;
    font-size: 1.05rem;
    line-height: 1;
    margin-top: 0.1rem;
}

/* ====== GRILLES / CARTES GÉNÉRIQUES ====== */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5rem;
}

.card {
    background: #020617;
    border-radius: 0.9rem;
    padding: 1.35rem;
    border: 1px solid #111827;
}

.card h3 {
    font-size: 1.05rem;
    margin-bottom: 0.5rem;
    color: #e5e7eb;
}
.card p {
    font-size: 0.9rem;
    color: #d1d5db;
}

.badge {
    display: inline-block;
    font-size: 0.75rem;
    padding: 0.25rem 0.6rem;
    border-radius: 999px;
    background: rgba(56, 189, 248, 0.08);
    color: #93c5fd;
    margin-bottom: 0.4rem;
}

/* ====== VISUELS / IMAGES ====== */
.visuals-title {
    margin-bottom: 1rem;
    font-size: 1.6rem;
    color: #e5e7eb;
}

.visuals-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5rem;
}

.visual-card {
    background: #020617;
    border-radius: 0.9rem;
    border: 1px solid #111827;
    overflow: hidden;
}

.visual-card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
}

.visual-card-body {
    padding: 0.9rem 1rem 1rem;
}

.visual-card-body h3 {
    font-size: 0.98rem;
    margin-bottom: 0.3rem;
    color: #e5e7eb;
}

.visual-card-body p {
    font-size: 0.85rem;
    color: #9ca3af;
}

.visual-card a {
    display: block;
    color: inherit;
    text-decoration: none;
}
.visual-card a:hover img {
    opacity: 0.9;
}
.visual-card a:hover .visual-card-body h3 {
    text-decoration: underline;
}

/* ====== CORETRACK SPÉCIFIQUE ====== */
.back {
    margin-bottom: 1.4rem;
    font-size: 0.9rem;
}

.cols {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.4rem;
    margin-top: 0.6rem;
}

.box {
    border-radius: 0.9rem;
    border: 1px solid #111827;
    background: #020617;
    padding: 1.1rem 1.2rem;
    font-size: 0.9rem;
}

.box h3 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    color: #e5e7eb;
}

.highlight {
    border-radius: 0.9rem;
    border: 1px dashed rgba(56,189,248,0.5);
    background: rgba(15,23,42,0.8);
    padding: 1rem 1.2rem;
    font-size: 0.9rem;
    margin-top: 1rem;
}

.obd-banner {
    margin: 2.5rem 0;
}
.obd-banner img {
    width: 100%;
    max-width: 1200px;
    display: block;
    margin: 0 auto;
    border-radius: 1rem;
    border: 1px solid #1f2937;
}

/* ====== CONTACT / FORM ====== */
.section-contact h2 {
    margin-bottom: 0.5rem;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1.1fr 1.2fr;
    gap: 2rem;
}

.contact-info p {
    font-size: 0.9rem;
    color: #d1d5db;
    margin-bottom: 0.6rem;
}

.contact-info ul {
    list-style: none;
    margin-top: 0.5rem;
}
.contact-info li {
    font-size: 0.9rem;
    color: #e5e7eb;
    margin-bottom: 0.3rem;
}

.contact-card {
    background: #020617;
    border-radius: 0.9rem;
    border: 1px solid #111827;
    padding: 1.4rem 1.5rem;
}

.field {
    margin-bottom: 0.9rem;
}
.field label {
    display: block;
    font-size: 0.85rem;
    margin-bottom: 0.2rem;
    color: #e5e7eb;
}
.field input,
.field select,
.field textarea {
    width: 100%;
    padding: 0.6rem 0.7rem;
    border-radius: 0.5rem;
    border: 1px solid #374151;
    background: #020617;
    color: #f3f4f6;
    font-size: 0.9rem;
}
.field textarea {
    min-height: 110px;
    resize: vertical;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
    outline: none;
    border-color: #38bdf8;
    box-shadow: 0 0 0 1px rgba(56, 189, 248, 0.3);
}

.contact-note {
    margin-top: 0.8rem;
    font-size: 0.8rem;
    color: #9ca3af;
}

/* ====== BLOCS INFO (applications, etc.) ====== */
.info-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5rem;
}

.info-card {
    background: #020617;
    border-radius: 0.9rem;
    border: 1px solid #111827;
    padding: 1.4rem;
    font-size: 0.9rem;
}
.info-card h3 {
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

/* ====== FOOTER ====== */
footer {
    border-top: 1px solid #111827;
    padding: 1.5rem 0 2rem;
    font-size: 0.85rem;
    color: #6b7280;
    text-align: center;
    background: #020617;
}

/* ====== RESPONSIVE ====== */
@media (max-width: 900px) {
    .hero-grid {
        grid-template-columns: 1fr;
    }
    nav.menu {
        flex-wrap: wrap;
    }
    .visuals-grid,
    .grid-3,
    .info-grid-3,
    .cols,
    .contact-grid {
        grid-template-columns: 1fr;
    }
}