/* ═══════════════ VARIABLES ═══════════════ */
:root {
    --navy:      #252F52;
    --blue:      #4a6cf7;
    --blue-lt:   #6b8cff;
    --off:       #f8f9fc;
    --text:      #1a1f36;
    --muted:     #6c757d;
    --border:    rgba(37,47,82,0.08);
    --radius:    18px;
    --shadow:    0 4px 24px rgba(37,47,82,0.07);
    --shadow-lg: 0 16px 48px rgba(37,47,82,0.13);
}
[data-theme="dark"] {
    --off:    #0d1117;
    --text:   #e9ecef;
    --muted:  #8b95a1;
    --border: rgba(255,255,255,0.07);
    --shadow: 0 4px 24px rgba(0,0,0,0.25);
    --shadow-lg: 0 16px 48px rgba(0,0,0,0.4);
}
* { box-sizing: border-box; }
body { font-family: 'Poppins', sans-serif; }

/* ═══════════════ HERO ═══════════════ */
.sys-hero {
    padding: 8rem 0 5rem;
    background: white;
    position: relative;
    overflow: hidden;
    text-align: center;
}
[data-theme="dark"] .sys-hero { background: #090d1a; }

.sys-hero-grid {
    position: absolute;
    inset: 0;
    background-image:
            linear-gradient(rgba(37,47,82,0.04) 1px, transparent 1px),
            linear-gradient(90deg, rgba(37,47,82,0.04) 1px, transparent 1px);
    background-size: 44px 44px;
    pointer-events: none;
}
[data-theme="dark"] .sys-hero-grid {
    background-image:
            linear-gradient(rgba(74,108,247,0.06) 1px, transparent 1px),
            linear-gradient(90deg, rgba(74,108,247,0.06) 1px, transparent 1px);
}
.sys-hero-glow {
    position: absolute;
    top: -20%; left: 50%; transform: translateX(-50%);
    width: 700px; height: 400px;
    background: radial-gradient(ellipse, rgba(74,108,247,0.1) 0%, transparent 65%);
    pointer-events: none;
}

.sys-hero-content { position: relative; z-index: 1; }

.sys-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(74,108,247,0.08);
    border: 1px solid rgba(74,108,247,0.16);
    border-radius: 50px;
    padding: 0.3rem 1rem;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--blue);
    margin-bottom: 1.2rem;
}

.sys-hero h1 {
    font-size: clamp(2.4rem, 5vw, 4rem);
    font-weight: 800;
    color: var(--text);
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}
.sys-hero h1 .accent {
    background: linear-gradient(135deg, var(--navy) 0%, var(--blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
[data-theme="dark"] .sys-hero h1 .accent {
    background: linear-gradient(135deg, #60a5fa 0%, #a78bfa 100%);
    -webkit-background-clip: text;
    background-clip: text;
}
.sys-hero p {
    font-size: 1.05rem;
    color: var(--muted);
    max-width: 520px;
    margin: 0 auto 2rem;
    line-height: 1.7;
}

/* Mini compteur systèmes */
.sys-hero-stats {
    display: inline-flex;
    align-items: center;
    gap: 2rem;
    background: var(--off);
    border: 1px solid var(--border);
    border-radius: 60px;
    padding: 0.6rem 2rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--muted);
    margin-top: 0.5rem;
}
.sys-hero-stats .hs-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}
.sys-hero-stats .hs-item i { color: var(--blue); font-size: 0.75rem; }
[data-theme="dark"] .sys-hero-stats { background: rgba(255,255,255,0.04); }

/* ═══════════════ GRILLE SYSTÈMES ═══════════════ */
.sys-section {
    padding: 80px 0 100px;
    background: var(--off);
}
[data-theme="dark"] .sys-section { background: #0d1117; }

.sys-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}
@media (max-width: 992px) { .sys-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 576px) { .sys-grid { grid-template-columns: 1fr; } }

/* Carte système */
.sys-card {
    background: white;
    border-radius: var(--radius);
    border: 1.5px solid var(--border);
    padding: 26px 24px 22px;
    display: flex;
    flex-direction: column;
    gap: 0;
    text-decoration: none !important;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s cubic-bezier(0.4,0,0.2,1),
    box-shadow 0.3s ease,
    border-color 0.3s ease;
    cursor: pointer;
}
[data-theme="dark"] .sys-card { background: #161b2e; }

.sys-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--c, var(--navy));
}

/* Barre colorée top */
.sys-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--c, var(--navy));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.35s ease;
    border-radius: var(--radius) var(--radius) 0 0;
}
.sys-card:hover::before { transform: scaleX(1); }

/* Cercle déco fond */
.sys-card::after {
    content: '';
    position: absolute;
    bottom: -24px; right: -24px;
    width: 90px; height: 90px;
    border-radius: 50%;
    background: var(--c, var(--navy));
    opacity: 0.04;
    transition: transform 0.4s ease, opacity 0.4s ease;
    pointer-events: none;
}
.sys-card:hover::after { transform: scale(2.8); opacity: 0.06; }

.sys-card-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 16px;
}

.sys-icon {
    width: 48px; height: 48px;
    border-radius: 13px;
    background: var(--c-bg, rgba(37,47,82,0.07));
    display: flex; align-items: center; justify-content: center;
    font-size: 1.1rem;
    color: var(--c, var(--navy));
    flex-shrink: 0;
    transition: transform 0.35s cubic-bezier(0.68,-0.55,0.27,1.55);
}
.sys-card:hover .sys-icon { transform: scale(1.1) rotate(8deg); }

.sys-badge {
    display: inline-flex;
    align-items: center;
    font-size: 0.6rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 3px 9px;
    border-radius: 6px;
    border: 1.5px solid;
    flex-shrink: 0;
}

.sys-card h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text);
    margin: 0 0 8px;
    line-height: 1.2;
}

.sys-card p {
    font-size: 0.82rem;
    color: var(--muted);
    line-height: 1.6;
    margin: 0 0 16px;
    flex: 1;
}

.sys-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 14px;
    border-top: 1px solid var(--border);
    margin-top: auto;
}
.sys-link-hint {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--c, var(--navy));
    display: flex;
    align-items: center;
    gap: 5px;
    opacity: 0;
    transform: translateX(-6px);
    transition: opacity 0.2s, transform 0.2s;
}
.sys-card:hover .sys-link-hint { opacity: 1; transform: translateX(0); }

.badge-free-pill {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.62rem;
    font-weight: 700;
    padding: 2px 9px;
    border-radius: 50px;
    background: rgba(34,197,94,0.1);
    color: #16a34a;
    border: 1px solid rgba(34,197,94,0.2);
}
[data-theme="dark"] .badge-free-pill { background: rgba(34,197,94,0.12); color: #4ade80; }

/* ═══════════════ SCROLL REVEAL ═══════════════ */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.55s ease, transform 0.55s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.08s; }
.reveal-delay-2 { transition-delay: 0.16s; }
.reveal-delay-3 { transition-delay: 0.24s; }
.reveal-delay-4 { transition-delay: 0.32s; }
.reveal-delay-5 { transition-delay: 0.40s; }

/* ═══════════════ CTA BAS ═══════════════ */
.sys-cta {
    padding: 80px 0;
    background: white;
    text-align: center;
}
[data-theme="dark"] .sys-cta { background: #090d1a; }

.sys-cta-card {
    background: linear-gradient(135deg, #1a1f36 0%, var(--navy) 55%, #2a3870 100%);
    border-radius: 24px;
    padding: 56px 48px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 24px 60px rgba(37,47,82,0.22);
    text-align: center;
}
.sys-cta-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
            linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
            linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 36px 36px;
    pointer-events: none;
}
.sys-cta-card::after {
    content: '';
    position: absolute;
    bottom: -50%; left: 50%; transform: translateX(-50%);
    width: 600px; height: 350px;
    background: radial-gradient(ellipse, rgba(74,108,247,0.4) 0%, transparent 60%);
    pointer-events: none;
}
.sys-cta-inner { position: relative; z-index: 1; }
.sys-cta-inner h2 {
    font-size: clamp(1.6rem, 3vw, 2.4rem);
    font-weight: 800;
    color: white;
    margin-bottom: 0.8rem;
}
.sys-cta-inner p {
    font-size: 0.95rem;
    color: rgba(255,255,255,0.6);
    margin: 0 auto 2rem;
    max-width: 480px;
    line-height: 1.7;
}
.btn-sys-cta {
    display: inline-flex; align-items: center; gap: 0.5rem;
    background: white; color: var(--navy);
    font-weight: 700; font-size: 0.95rem;
    border-radius: 50px; padding: 0.85rem 2.2rem;
    text-decoration: none;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    transition: transform 0.25s, box-shadow 0.25s;
}
.btn-sys-cta:hover { transform: translateY(-3px); box-shadow: 0 10px 32px rgba(0,0,0,0.25); color: var(--navy); }

/* ═══════════════ AD ═══════════════ */
.ad-notice {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--muted);
    text-align: center;
    margin-bottom: 0.4rem;
    opacity: 0.55;
}