:root {
    --bg-main: #f8fafc;
    --bg-card: #ffffff;
    --bg-card-hover: #f1f5f9;
    --accent: #154e87;
    --accent-muted: rgba(21, 78, 135, 0.06);
    --text-heading: #111a2e;
    --text-body: #475569;
    --text-light: #1e293b;
    --border: rgba(17, 26, 46, 0.08);
    --success: #10b981;
    --danger: #ef4444;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-body);
    line-height: 1.6;
    padding: 0;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

.section-padding {
    padding: 40px 24px;
}

.bg-alt {
    background: #ffffff;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

h2 {
    font-size: 32px;
    font-weight: 800;
    color: var(--text-heading);
    text-align: center;
    margin-bottom: 16px;
}

.section-desc {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 48px auto;
    font-size: 16px;
}

header {
    border-bottom: 1px solid var(--border);
    background: var(--bg-card);
    padding: 16px 0;
}

.header-wrap {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-img {
    height: 50px;
    width: auto;
    display: block;
    object-fit: contain;
}

.header-contact {
    display: flex;
    align-items: center;
    gap: 20px;
}

.phone-link {
    color: var(--text-heading);
    font-weight: 600;
    font-size: 15px;
    text-decoration: none;
    transition: color 0.2s ease;
}

.phone-link:hover {
    color: var(--accent);
}

.hero {
    padding: 50px 0 50px 0;
    text-align: center;
}

.hero p {
    font-size: 19px;
    max-width: 760px;
    margin: 0 auto 40px auto;
    color: var(--text-body);
}

.tagline {
    display: inline-block;
    background: var(--accent-muted);
    color: var(--accent);
    padding: 8px 20px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 24px;
}

h1 {
    font-size: 46px;
    font-weight: 800;
    color: var(--text-heading);
    line-height: 1.2;
    margin-bottom: 24px;
    letter-spacing: -0.5px;
}

.btn-primary,
.btn-secondary,
.btn-submit {
    background: var(--accent);
    display: inline-block;
    border-radius: 8px;
    font-family: inherit;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    text-align: center;
    border: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease, opacity 0.2s ease, filter 0.2s ease;
}

.btn-primary:hover,
.btn-secondary:hover,
.btn-submit:hover {
    transform: translateY(-2px);
    filter: brightness(1.15);
}

.btn-primary:active,
.btn-secondary:active,
.btn-submit:active {
    transform: translateY(1px);
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.btn-primary {
    color: #ffffff;
    padding: 16px 36px;
    font-size: 16px;
    box-shadow: 0 4px 12px rgba(21, 78, 135, 0.15);
}

.btn-primary:hover {
    box-shadow: 0 6px 20px rgba(21, 78, 135, 0.3);
    opacity: 0.95;
}

.btn-secondary {
    color: #ffffff;
    padding: 10px 22px;
    font-size: 14px;
    font-weight: 600;
}

.btn-secondary:hover {
    background: var(--accent);
}

.btn-submit {
    width: 100%;
    background: var(--accent);
    color: #ffffff;
    padding: 16px;
    font-size: 16px;
}

.btn-submit:hover {
    box-shadow: 0 4px 14px rgba(21, 78, 135, 0.25);
    opacity: 0.95;
}

.tag {
    background: var(--accent-muted);
    color: var(--accent);
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
}

.grid-comparison {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.card-comp {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 32px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.02);
}

.card-comp.avant { border-top: 4px solid var(--danger); }
.card-comp.apres { border-top: 4px solid var(--accent); }

.card-comp h3 {
    font-size: 20px;
    color: var(--text-heading);
    margin-bottom: 24px;
}

.card-comp ul {
    list-style: none;
}

.card-comp li {
    margin-bottom: 16px;
    position: relative;
    padding-left: 28px;
    font-size: 15px;
    color: var(--text-body);
}

.avant li::before { content: "✕"; position: absolute; left: 0; color: var(--danger); font-weight: bold; }
.apres li::before { content: "✓"; position: absolute; left: 0; color: var(--success); font-weight: bold; }
.card-comp strong { color: var(--text-light); font-weight: 600; }

.grid-pillars {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.pillar-card {
    background: var(--bg-main);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 40px;
    transition: background 0.3s, transform 0.2s;
}

.pillar-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-2px);
}

.pillar-icon {
    width: 48px;
    height: 48px;
    background: var(--accent-muted);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: var(--accent);
}

.pillar-card h3 {
    font-size: 22px;
    color: var(--text-heading);
    margin-bottom: 16px;
}

.pillar-card p {
    font-size: 15px;
    margin-bottom: 24px;
}

.tags-wrapper {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.form-box {
    background: var(--bg-main);
    border: 1px solid var(--border);
    box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.03);
    border-radius: 16px;
    padding: 48px 32px;
    max-width: 600px;
    margin: 0 auto;
}

.form-box h2 { margin-bottom: 12px; }
.form-box p { text-align: center; margin-bottom: 32px; }

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-heading);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-light);
    font-size: 16px;
    transition: border-color 0.2s, background-color 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent);
    background-color: var(--bg-card-hover);
}

textarea.form-control {
    resize: vertical;
    font-family: inherit;
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23475569' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'></polyline></svg>");
    background-repeat: no-repeat;
    background-position: right 16px center;
    background-size: 16px;
}

.form-phone-link {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    transition: filter 0.2s ease;
}

.form-phone-link:hover {
    filter: brightness(1.2);
    text-decoration: underline;
}

.form-status {
    margin-top: 20px;
    padding: 12px 16px;
    border-radius: 6px;
    font-size: 15px;
    font-weight: 500;
    text-align: center;
    display: none;
}

.form-status.success {
    display: block;
    background-color: var(--accent-muted);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.form-status.error {
    display: block;
    background-color: rgba(239, 68, 68, 0.05);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

footer {
    border-top: 1px solid var(--border);
    padding: 40px 0;
    text-align: center;
    font-size: 14px;
    background: #ffffff;
}

.footer-phone {
    color: var(--text-body);
    text-decoration: none;
    font-weight: 500;
}

.footer-phone:hover {
    color: var(--accent);
}

@media (max-width: 600px) {
    .grid-pillars { 
        grid-template-columns: 1fr; 
        gap: 24px;
    }
    
    .pillar-card {
        padding: 24px 20px;
    }
    
    .grid-comparison {
        grid-template-columns: 1fr;
        gap: 24px; 
    }
    
    .card-comp {
        padding: 20px 16px;
    }
    
    h1 { font-size: 34px; }
    h2 { font-size: 26px; }
    
    .section-padding { padding: 48px 0; }
    .hero { padding: 60px 0 40px 0; }
    
    header, 
    footer { 
        padding-left: 16px !important;
        padding-right: 16px !important;
    }
    
    .hero,
    .container {
        padding-left: 16px !important;
        padding-right: 16px !important;
    }
    
    .bg-alt {
        padding-left: 0 !important;
        padding-right: 0 !important;
    }

    .form-box { 
        padding: 32px 16px; 
        width: 100%;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .header-wrap {
        flex-direction: column;
        gap: 16px;
    }
    
    .header-contact {
        gap: 16px;
        width: 100%;
        justify-content: center;
    }
}


/* MENTIONS LEGALES*/
.legal-content {
    max-width: 800px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.02);
}
.legal-content h2 {
    text-align: left;
    font-size: 24px;
    margin: 32px 0 16px 0;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--accent-muted);
}
.legal-content h2:first-of-type {
    margin-top: 0;
}
.legal-content p, .legal-content ul {
    font-size: 15px;
    color: var(--text-body);
    margin-bottom: 16px;
}
.legal-content ul {
    padding-left: 20px;
}
.legal-content li {
    margin-bottom: 8px;
}
.back-link {
    display: inline-flex;
    align-items: center;
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    margin-bottom: 32px;
    font-size: 15px;
}
.back-link:hover {
    text-decoration: underline;
}