/* BASE TYPO & LAYOUT */
* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
    Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    background: #F7F9FC;
    color: #111;
    line-height: 1.6;
}

/* SITE TITLE */
.site-title {
    text-align: center;
    padding: 10px 0;
    font-size: 0.95rem;
    font-weight: 600;
    color: #0A1A2F;
    letter-spacing: 0.08em;
}

/* ANIMATIONS */
.fade-in {
    opacity: 0;
    animation: fadeIn 0.9s ease forwards;
}

.fade-in-up {
    opacity: 0;
    transform: translateY(18px);
    animation: fadeUp 0.9s ease forwards;
}

@keyframes fadeIn {
    to { opacity: 1; }
}

@keyframes fadeUp {
    to { opacity: 1; transform: translateY(0); }
}

/* NAVBAR */
.navbar {
    position: sticky;
    top: 0;
    background: #F7F9FC;
    padding: 14px 0;
    border-bottom: 1px solid #E2E6EE;
    z-index: 1000;
}

.navbar nav {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

.navbar ul {
    list-style: none;
    display: flex;
    justify-content: flex-end;
    gap: 26px;
    margin: 0;
    padding: 0;
}

.navbar a {
    text-decoration: none;
    color: #0A1A2F;
    font-weight: 500;
    font-size: 0.95rem;
}

/* HERO SPLIT */
.hero-split {
    max-width: 1100px;
    margin: 0 auto;
    padding: 80px 20px 70px;
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    gap: 40px;
    align-items: center;
}

.hero-content {
    max-width: 560px;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-visual svg {
    max-width: 100%;
    height: auto;
}

/* TITRES & TEXTES */
.title-xl {
    font-size: 2.4rem;
    line-height: 1.2;
    color: #0A1A2F;
    margin: 0 0 18px;
}

.title-lg {
    font-size: 2rem;
    line-height: 1.25;
    color: #0A1A2F;
    margin: 0 0 16px;
}

.subtitle {
    font-size: 1.02rem;
    color: #4A4A4A;
    margin: 0 auto 24px;
    max-width: 700px;
}

/* CTA GROUP */
.cta-group {
    margin-top: 26px;
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

/* BUTTONS */
.btn-primary {
    background: #F5A623;
    color: #fff;
    padding: 11px 26px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.98rem;
    box-shadow: 0 8px 18px rgba(245, 166, 35, 0.35);
}

.btn-secondary {
    border: 1.5px solid #0A1A2F;
    color: #0A1A2F;
    padding: 9px 24px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    background: transparent;
}

/* SECTIONS GÉNÉRALES */
.section {
    padding: 70px 20px;
    text-align: center;
}

.section .title-lg {
    margin-bottom: 10px;
}

.section .subtitle {
    margin-bottom: 30px;
}

/* FEATURES LIST */
.features {
    list-style: none;
    padding: 0;
    max-width: 700px;
    margin: 0 auto;
    text-align: left;
}

.features li {
    margin: 8px 0;
    color: #111;
    font-size: 0.98rem;
}

/* GRID SYSTEM */
.grid-3 {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}

/* CARDS PREMIUM */
.card-premium {
    background: #fff;
    border-radius: 10px;
    padding: 22px 22px 20px;
    border: 1px solid #E2E6EE;
    text-align: left;
    box-shadow: 0 10px 25px rgba(10, 26, 47, 0.03);
}

.card-premium h3 {
    margin: 0 0 8px;
    color: #0A1A2F;
    font-size: 1.05rem;
}

.card-premium p {
    margin: 0;
    color: #4A4A4A;
    font-size: 0.95rem;
}

/* TIMELINE */
.timeline-container {
    position: relative;
    max-width: 900px;
    margin: 50px auto 0;
    padding: 0 20px 10px;
}

.timeline-container::before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    width: 3px;
    height: 100%;
    background: #0A1A2F;
    transform: translateX(-50%);
    border-radius: 2px;
    opacity: 0.9;
}

.timeline-step {
    position: relative;
    width: 50%;
    padding: 32px 30px;
    box-sizing: border-box;
}

.timeline-step:nth-child(odd) {
    left: 0;
    text-align: right;
}

.timeline-step:nth-child(even) {
    left: 50%;
    text-align: left;
}

.timeline-step .dot {
    position: absolute;
    top: 28px;
    width: 42px;
    height: 42px;
    background: #fff;
    border: 3px solid #F5A623;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.08);
}

.timeline-step:nth-child(odd) .dot {
    right: -21px;
}

.timeline-step:nth-child(even) .dot {
    left: -21px;
}

.timeline-step h3 {
    margin: 0 0 6px;
    color: #0A1A2F;
    font-size: 1.05rem;
}

.timeline-step p {
    margin: 0;
    color: #4A4A4A;
    font-size: 0.95rem;
}

/* CTA FINAL */
.cta-final {
    text-align: center;
    padding: 80px 20px 90px;
    background: #fff;
    border-top: 1px solid #E2E6EE;
    border-bottom: 1px solid #E2E6EE;
}

.cta-final .subtitle {
    margin-bottom: 26px;
}

/* FOOTER */
footer {
    text-align: center;
    padding: 32px 20px 40px;
    font-size: 0.9rem;
    color: #4A4A4A;
}

/* RESPONSIVE */
@media (max-width: 900px) {
    .hero-split {
        grid-template-columns: 1fr;
        padding-top: 60px;
        gap: 30px;
    }

    .hero-content {
        order: 1;
        text-align: left;
    }

    .hero-visual {
        order: 2;
    }

    .navbar ul {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .title-xl {
        font-size: 2rem;
    }

    .title-lg {
        font-size: 1.7rem;
    }

    .hero-split {
        padding: 50px 16px 50px;
    }

    .grid-3 {
        grid-template-columns: 1fr;
    }

    .features {
        text-align: left;
        padding: 0 4px;
    }

    .timeline-container::before {
        left: 24px;
    }

    .timeline-step {
        width: 100%;
        padding: 26px 20px 26px 60px;
        left: 0 !important;
        text-align: left !important;
    }

    .timeline-step .dot {
        left: 13px !important;
        right: auto !important;
    }
}
