:root {
    --navy: #1a2336;
    --navy-light: #243049;
    --gold: #D3A625;
    --gold-light: #f0c040;
    --cream: #F7F4EF;
    --white: #FFFFFF;
    --grey: #8a9ab5;
    --shadow-soft: 0 18px 50px rgba(0, 0, 0, 0.08);
    --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
    --card-border: 1px solid rgba(0, 0, 0, 0.05);
    --couleur-principale: var(--navy);
    --couleur-accent: var(--gold);
    --couleur-fond: var(--cream);
    --couleur-blanc: var(--white);
    --header-height: 80px;
}

* {
    box-sizing: border-box;
}

body {
    font-family: 'DM Sans', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
    color: var(--navy);
    background: var(--cream);
    padding-top: var(--header-height);
    padding-top: calc(var(--header-height) + constant(safe-area-inset-top));
    padding-top: calc(var(--header-height) + env(safe-area-inset-top));
    scroll-padding-top: var(--header-height);
    line-height: 1.7;
}

header {
    height: var(--header-height);
    padding: 0 20px;
    background: rgba(26, 35, 54, 0.97);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(211, 166, 37, 0.2);
    box-shadow: none;
}

header .logo {
    text-decoration: none;
    display: inline-flex;
    align-items: center;
}

header .logo img {
    display: none;
}

header .logo::before {
    content: "HAIZE";
    font-family: 'Syne', sans-serif;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--white);
}

header .logo::after {
    content: "Elec";
    font-family: 'Syne', sans-serif;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--gold);
}

.nav-container {
    gap: 16px;
}

header nav a {
    color: rgba(255, 255, 255, 0.72);
    font-weight: 600;
    font-size: 0.88rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

header nav a:hover {
    color: var(--gold);
}

header .contact-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #25D366;
    color: var(--white);
    padding: 12px 16px;
    border-radius: 10px;
    font-weight: 700;
    transition: transform 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease;
}

header .contact-button:hover {
    background: #1fb65a;
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(37, 211, 102, 0.24);
}

.page-hero {
    background: linear-gradient(135deg, var(--navy) 0%, #34495e 100%);
    color: var(--white);
    padding: 86px 20px 68px;
    text-align: center;
}

.page-hero h1 {
    font-family: 'Syne', sans-serif;
    font-weight: 800;
    letter-spacing: -0.02em;
    font-size: clamp(2rem, 4vw, 3.35rem);
    line-height: 1.12;
    max-width: 920px;
    margin: 0 auto 18px;
}

.page-hero p {
    max-width: 840px;
    margin: 0 auto;
    font-size: 1.08rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.9);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
    padding: 7px 14px;
    border-radius: 999px;
    border: 1px solid rgba(211, 166, 37, 0.28);
    background: rgba(211, 166, 37, 0.14);
    color: var(--gold);
    font-size: 0.86rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.hero-cta {
    display: flex;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
    margin-top: 26px;
}

.content-section {
    max-width: 1120px;
    margin: 0 auto;
    padding: 64px 20px;
}

.content-section h2 {
    font-family: 'Syne', sans-serif;
    font-weight: 700;
    font-size: clamp(1.7rem, 2.2vw, 2.2rem);
    color: var(--navy);
    margin-bottom: 28px;
    border-left: 4px solid var(--gold);
    padding-left: 18px;
}

.content-section h3 {
    color: var(--navy);
    font-size: 1.35rem;
    margin-top: 28px;
    margin-bottom: 14px;
}

.content-section p {
    color: #36455c;
    font-size: 1.04rem;
}

.content-section ul,
.content-section ol {
    padding-left: 24px;
    color: #36455c;
}

.content-section li {
    margin-bottom: 10px;
    font-size: 1.02rem;
}

.content-section ul li::marker,
.content-section ol li::marker {
    color: var(--gold);
}

.service-features,
.tarifs-grid,
.marques-container {
    display: grid;
    gap: 22px;
    margin: 38px 0;
}

.service-features {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.marques-container {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    align-items: stretch;
}

.feature-box,
.tarif-card {
    background: var(--white);
    border-radius: 14px;
    border: var(--card-border);
    box-shadow: var(--card-shadow);
    padding: 28px 24px;
}

.feature-box {
    text-align: left;
}

.feature-box i {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border-radius: 12px;
    background: rgba(211, 166, 37, 0.12);
    color: var(--gold);
    font-size: 1.45rem;
    margin-bottom: 18px;
}

.feature-box h3 {
    margin-top: 0;
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.feature-box p {
    margin-bottom: 0;
}

.tarifs-grid {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.tarif-card {
    text-align: center;
    border-top: 4px solid var(--gold);
}

.tarif-label {
    font-size: 0.9rem;
    color: #66758f;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 10px;
}

.tarif-price {
    font-family: 'Syne', sans-serif;
    font-weight: 800;
    font-size: 2.1rem;
    color: var(--navy);
}

.tarif-sub,
.tarif-includes {
    color: #79869a;
    font-size: 0.92rem;
}

.tarif-note {
    color: #64748b;
    font-size: 0.96rem;
    margin-top: -8px;
}

.marque-logo {
    width: 100%;
    max-width: 190px;
    max-height: 88px;
    margin: 0 auto;
    padding: 16px;
    background: var(--white);
    border-radius: 14px;
    border: var(--card-border);
    box-shadow: var(--card-shadow);
    object-fit: contain;
}

.faq-section {
    padding: 0 20px 30px;
}

.faq-inner {
    max-width: 980px;
    margin: 0 auto;
    background: var(--white);
    border-radius: 16px;
    border: var(--card-border);
    box-shadow: var(--shadow-soft);
    padding: 34px 30px;
}

.faq-section h2 {
    font-family: 'Syne', sans-serif;
    font-weight: 700;
    color: var(--navy);
}

details.faq-item {
    border-bottom: 1px solid #e8ecf2;
    padding: 18px 0;
}

details.faq-item:last-child {
    border-bottom: none;
}

.faq-question {
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    list-style: none;
    color: var(--navy);
    font-weight: 700;
}

.faq-question::-webkit-details-marker {
    display: none;
}

.faq-question::after {
    content: '+';
    color: var(--gold);
    font-size: 1.4rem;
    flex-shrink: 0;
    margin-left: 16px;
    transition: transform 0.25s ease;
}

details[open] .faq-question::after {
    transform: rotate(45deg);
}

.faq-answer {
    margin-top: 12px;
    color: #475569;
    line-height: 1.75;
}

.cta-section {
    background: var(--navy);
    color: var(--white);
    text-align: center;
    padding: 62px 20px;
    margin-top: 28px;
}

.cta-section h2 {
    font-family: 'Syne', sans-serif;
    font-weight: 700;
    font-size: clamp(1.8rem, 2.5vw, 2.5rem);
    margin-bottom: 14px;
    color: var(--white);
}

.cta-section p {
    max-width: 760px;
    margin: 0 auto 22px;
    color: rgba(255, 255, 255, 0.88);
}

.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 15px 28px;
    margin: 8px;
    border-radius: 8px;
    background: var(--gold);
    color: var(--navy);
    font-weight: 700;
    text-decoration: none;
    transition: transform 0.2s ease, background 0.2s ease;
}

.cta-button:hover {
    background: #b89120;
    color: var(--navy);
    transform: translateY(-2px);
}

.sticky-call-btn {
    background: #25D366;
    color: var(--white);
    box-shadow: 0 12px 28px rgba(37, 211, 102, 0.26);
}

footer {
    background: #0d1524;
    color: #e0e6ed;
    padding: 34px 20px;
    text-align: center;
}

footer p,
footer a {
    color: #e0e6ed;
}

@media (max-width: 768px) {
    .page-hero {
        padding: 72px 20px 54px;
    }

    .content-section {
        padding: 46px 20px;
    }

    .faq-inner {
        padding: 26px 22px;
    }

    .contact-button {
        display: none;
    }
}