/* ═══════════════════════════════════════════════════════
   A5Z Tech — Feuille de style partagée
   ═══════════════════════════════════════════════════════ */
:root {
    --a5z-dark:   #0f172a;
    --a5z-slate:  #1e293b;
    --a5z-blue:   #3b82f6;
    --a5z-indigo: #6366f1;
    --a5z-light:  #f8fafc;
    --a5z-muted:  #64748b;
    --a5z-border: #e2e8f0;
    --a5z-text:   #1e293b;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Inter', system-ui, sans-serif; color: var(--a5z-text); }

/* ── Navbar ───────────────────────────────────────────── */
.navbar-a5z {
    background: rgba(15, 23, 42, 0.97);
    backdrop-filter: blur(8px);
    padding: .9rem 0;
    position: sticky; top: 0; z-index: 1000;
    border-bottom: 1px solid rgba(255,255,255,.06);
}
.navbar-a5z .brand {
    font-size: 1.25rem; font-weight: 800; color: #fff;
    text-decoration: none; letter-spacing: -0.5px;
}
.navbar-a5z .brand span { color: var(--a5z-blue); }
.navbar-a5z .nav-links {
    display: flex; align-items: center; gap: 2rem; list-style: none;
}
.navbar-a5z .nav-links a {
    color: #94a3b8; text-decoration: none; font-size: .9rem;
    font-weight: 500; transition: color .2s;
}
.navbar-a5z .nav-links a:hover,
.navbar-a5z .nav-links a.active { color: #fff; }
.navbar-a5z .nav-links a.active { border-bottom: 2px solid var(--a5z-blue); padding-bottom: 2px; }
.navbar-a5z .nav-cta {
    background: var(--a5z-blue); color: #fff !important;
    padding: .45rem 1.1rem; border-radius: 8px; font-weight: 600 !important;
    border-bottom: none !important;
}
.navbar-a5z .nav-cta:hover { background: #2563eb !important; }
.navbar-toggler {
    background: none; border: 1px solid rgba(255,255,255,.2);
    padding: .35rem .6rem; border-radius: 6px; cursor: pointer;
}
.navbar-toggler i { color: #fff; font-size: 1.1rem; }
@media (max-width: 768px) {
    .nav-links { display: none !important; flex-direction: column; gap: .5rem;
                 padding: 1rem 0; align-items: flex-start; }
    .nav-links.open { display: flex !important; }
    .mobile-nav-wrap { border-top: 1px solid rgba(255,255,255,.06); margin-top: .75rem; padding-top: .75rem; }
}

/* ── Page header ──────────────────────────────────────── */
.page-header {
    background: linear-gradient(135deg, var(--a5z-dark) 0%, #1a2744 50%, var(--a5z-slate) 100%);
    padding: 4rem 1rem 3.5rem;
    text-align: center; color: #fff;
}
.page-header h1 {
    font-size: clamp(1.8rem, 4vw, 3rem);
    font-weight: 800; letter-spacing: -1px;
}
.page-header .a5z-highlight { color: var(--a5z-blue); }
.page-header p { font-size: 1.1rem; color: #94a3b8; max-width: 560px; margin: .75rem auto 0; }

/* ── Section helpers ──────────────────────────────────── */
.section-label {
    font-size: .85rem; font-weight: 600;
    text-transform: uppercase; letter-spacing: 2px;
    color: var(--a5z-indigo); margin-bottom: .5rem;
}
.section-title-lg {
    font-size: clamp(1.5rem, 3vw, 2.2rem);
    font-weight: 800; letter-spacing: -.5px; margin-bottom: 1rem;
}
.section-sub { color: var(--a5z-muted); max-width: 560px; }

/* ── Cards ────────────────────────────────────────────── */
.card-a5z {
    border: 1px solid var(--a5z-border);
    border-radius: 16px;
    padding: 2rem;
    background: #fff;
    transition: transform .25s ease, box-shadow .25s ease;
    height: 100%;
    display: flex; flex-direction: column;
}
.card-a5z:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,.07);
}
.card-icon {
    width: 52px; height: 52px;
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem; margin-bottom: 1.25rem; flex-shrink: 0;
}

/* ── Badges tech ──────────────────────────────────────── */
.tech-badge {
    display: inline-block;
    background: #f1f5f9; color: #475569;
    font-size: .72rem; font-weight: 600;
    padding: .2rem .55rem; border-radius: 6px;
    margin: .2rem .15rem 0 0;
}

/* ── Buttons ──────────────────────────────────────────── */
.btn-primary-a5z {
    display: inline-flex; align-items: center; gap: .5rem;
    background: var(--a5z-blue); color: #fff;
    padding: .75rem 1.75rem; border-radius: 10px;
    font-weight: 600; font-size: .95rem;
    text-decoration: none; transition: background .2s;
    border: none; cursor: pointer;
}
.btn-primary-a5z:hover { background: #2563eb; color: #fff; }
.btn-outline-a5z {
    display: inline-flex; align-items: center; gap: .5rem;
    background: transparent; color: var(--a5z-blue);
    padding: .7rem 1.5rem; border-radius: 10px;
    font-weight: 600; font-size: .9rem;
    text-decoration: none; transition: all .2s;
    border: 1px solid var(--a5z-blue);
}
.btn-outline-a5z:hover { background: var(--a5z-blue); color: #fff; }

/* ── Footer ───────────────────────────────────────────── */
footer {
    background: var(--a5z-dark); color: #94a3b8;
    text-align: center; padding: 2.5rem 1rem; font-size: .85rem;
}
footer a { color: var(--a5z-blue); text-decoration: none; }
footer a:hover { text-decoration: underline; }
footer .footer-links {
    display: flex; justify-content: center; gap: 1.5rem;
    flex-wrap: wrap; margin-bottom: 1rem;
    list-style: none;
}
footer .footer-links a { color: #94a3b8; }
footer .footer-links a:hover { color: #fff; text-decoration: none; }