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

:root {
    --blue: #1E88E5;
    --blue-dark: #0D47A1;
    --blue-light: #42A5F5;
    --white: #FFFFFF;
    --light-bg: #F8FAFC;
    --gray: #8899AA;
    --gray-dark: #555555;
    --dark: #1A1A1A;
    --shadow: 0 4px 20px rgba(0,0,0,0.06);
    --radius: 16px;
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--dark);
    background: var(--white);
    line-height: 1.7;
}

/* ===== HEADER ===== */
header {
    background: var(--white);
    padding: 0.6rem 1.5rem;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 2px solid var(--blue);
    box-shadow: 0 2px 10px rgba(0,0,0,0.04);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: auto;
}

.logo {
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    color: var(--dark);
    font-weight: 800;
    font-size: 1.6rem;
}

.logo-icon {
    color: var(--blue);
    font-size: 1.2rem;
    margin-right: 2px;
}

.logo-highlight {
    color: var(--blue);
}

.logo-dark {
    color: var(--dark);
}

.logo-sub {
    display: block;
    width: 100%;
    font-size: 0.55rem;
    font-weight: 400;
    color: var(--gray);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-top: -2px;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 1.8rem;
}

.nav-links a {
    color: var(--gray-dark);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--blue);
    transition: var(--transition);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--dark);
}

.logo-header {
    display: flex;
    align-items: center;
    margin-left: 1rem;
}

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

.burger {
    display: none;
    font-size: 1.6rem;
    cursor: pointer;
    background: none;
    border: none;
    color: var(--dark);
}

/* ===== HERO ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 7rem 1.5rem 4rem;
    background: var(--white);
}

.hero-content {
    max-width: 900px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    background: rgba(30,136,229,0.06);
    color: var(--blue);
    padding: 0.4rem 1.5rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(30,136,229,0.08);
}

.hero h1 {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: 900;
    color: var(--dark);
    line-height: 1.1;
    margin-bottom: 0.5rem;
}

.hero .highlight {
    color: var(--blue);
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.3rem);
    color: var(--gray-dark);
    font-weight: 600;
    margin-bottom: 0.6rem;
}

.hero-description {
    font-size: clamp(0.95rem, 1.2vw, 1.1rem);
    color: var(--gray);
    max-width: 600px;
    margin: 0.5rem auto 1.5rem;
}

.hero-contact {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.hero-phone,
.hero-email {
    color: var(--gray-dark);
    text-decoration: none;
    font-size: 1rem;
    transition: var(--transition);
}

.hero-phone:hover,
.hero-email:hover {
    color: var(--blue);
}

.hero-separator {
    color: var(--gray);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.btn-primary {
    background: var(--blue);
    color: var(--white);
    padding: 0.85rem 2.2rem;
    border-radius: 50px;
    font-weight: 700;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary:hover {
    background: var(--blue-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(30,136,229,0.25);
}

.btn-secondary {
    background: transparent;
    color: var(--dark);
    padding: 0.85rem 2.2rem;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    border: 2px solid #E8EDF2;
    transition: var(--transition);
    font-size: 1rem;
}

.btn-secondary:hover {
    border-color: var(--blue);
    color: var(--blue);
    transform: translateY(-2px);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: clamp(1.5rem, 5vw, 4rem);
    flex-wrap: wrap;
}

.stat-number {
    display: block;
    font-size: clamp(1.8rem, 4vw, 2.4rem);
    font-weight: 800;
    color: var(--blue);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--gray);
}

/* ===== SECTIONS ===== */
.section {
    padding: 4rem 1.5rem;
    max-width: 1200px;
    margin: auto;
}

.alt-bg {
    background: var(--light-bg);
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-tag {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--blue);
    background: rgba(30,136,229,0.06);
    padding: 0.3rem 1.2rem;
    border-radius: 50px;
    margin-bottom: 0.6rem;
}

.section-header h2 {
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 800;
    color: var(--dark);
}

.section-header p {
    color: var(--gray);
    font-size: 1.05rem;
    max-width: 550px;
    margin: 0 auto;
}

/* ===== SERVICES ===== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
}

.service-card {
    background: var(--white);
    padding: 2rem 1.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    border-bottom: 3px solid transparent;
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 8px 40px rgba(0,0,0,0.10);
    border-bottom-color: var(--blue);
}

.service-icon {
    font-size: 2.5rem;
    color: var(--blue);
    margin-bottom: 1rem;
}

.service-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
}

.service-card p {
    color: var(--gray);
    font-size: 0.92rem;
}

/* ===== RÉALISATIONS ===== */
.realisations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.realisation-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.realisation-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 40px rgba(0,0,0,0.10);
}

.realisation-images {
    display: grid;
    grid-template-columns: 1fr 1fr;
    height: 200px;
}

.realisation-avant,
.realisation-apres {
    background-size: cover;
    background-position: center;
    position: relative;
}

.realisation-avant::after,
.realisation-apres::after {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40%;
    background: linear-gradient(transparent, rgba(0,0,0,0.4));
    content: '';
}

.label-avant,
.label-apres {
    position: absolute;
    top: 8px;
    left: 8px;
    font-size: 0.6rem;
    font-weight: 700;
    padding: 2px 10px;
    border-radius: 4px;
    z-index: 1;
}

.label-avant {
    background: rgba(80,80,80,0.85);
    color: #fff;
}

.label-apres {
    background: var(--blue);
    color: #fff;
}

.realisation-info {
    padding: 1rem 1.5rem;
}

.realisation-info h4 {
    font-weight: 700;
}

.realisation-info p {
    color: var(--gray);
    font-size: 0.85rem;
}

.realisation-info p i {
    color: var(--blue);
    margin-right: 0.3rem;
}

.realisation-tag {
    display: inline-block;
    margin-top: 0.3rem;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--blue);
    background: rgba(30,136,229,0.06);
    padding: 0.2rem 0.8rem;
    border-radius: 20px;
}

/* ===== DEVIS ===== */
.devis-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
}

.devis-step {
    display: flex;
    gap: 1.2rem;
    align-items: flex-start;
    margin-bottom: 1.5rem;
}

.step-number {
    background: var(--blue);
    color: var(--white);
    font-weight: 800;
    font-size: 1.2rem;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.devis-step h4 {
    font-weight: 700;
}

.devis-step p {
    color: var(--gray);
    font-size: 0.92rem;
}

.devis-garantie {
    display: flex;
    gap: 1rem;
    align-items: center;
    background: var(--white);
    padding: 1.2rem;
    border-radius: var(--radius);
    border-left: 4px solid var(--blue);
    box-shadow: var(--shadow);
}

.devis-garantie i {
    font-size: 2rem;
    color: var(--blue);
}

.devis-garantie strong {
    display: block;
}

.devis-garantie span {
    color: var(--gray);
    font-size: 0.85rem;
}

.devis-form {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.devis-form h3 {
    font-weight: 700;
    font-size: 1.1rem;
    margin: 1.2rem 0 0.8rem;
}

.devis-form h3:first-of-type {
    margin-top: 0;
}

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

.devis-form input,
.devis-form select,
.devis-form textarea,
.contact-form input,
.contact-form textarea {
    padding: 0.8rem 1.2rem;
    border: 1px solid #E8EDF2;
    border-radius: 10px;
    font-family: inherit;
    font-size: 0.95rem;
    transition: var(--transition);
    background: var(--white);
    color: var(--dark);
    width: 100%;
}

.devis-form input:focus,
.devis-form select:focus,
.devis-form textarea:focus,
.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--blue);
    box-shadow: 0 0 0 3px rgba(30,136,229,0.06);
}

.devis-checkbox {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 0.9rem;
    color: var(--gray);
}

.devis-checkbox input[type="checkbox"] {
    width: 1.1rem;
    height: 1.1rem;
    accent-color: var(--blue);
}

#devisFeedback,
#contactFeedback {
    margin-top: 0.5rem;
    font-weight: 600;
}

/* ===== CONTACT ===== */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 2.5rem;
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.contact-item i {
    font-size: 1.2rem;
    color: var(--blue);
    width: 2rem;
}

.contact-item strong {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--gray);
}

.contact-item a,
.contact-item span {
    color: var(--dark);
    text-decoration: none;
    font-weight: 600;
}

.contact-item a:hover {
    color: var(--blue);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* ===== FOOTER ===== */
footer {
    background: var(--dark);
    color: var(--gray);
    padding: 3rem 1.5rem 1.5rem;
}

.footer-content {
    max-width: 1200px;
    margin: auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid #2a2a2a;
}

.footer-col .logo {
    color: var(--white);
}

.footer-col .logo-sub {
    color: var(--gray);
}

.footer-col p {
    font-size: 0.88rem;
}

.footer-col h4 {
    color: var(--white);
    margin-bottom: 1rem;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 0.4rem;
}

.footer-col ul a {
    color: var(--gray);
    text-decoration: none;
    font-size: 0.88rem;
    transition: var(--transition);
}

.footer-col ul a:hover {
    color: var(--blue);
}

.footer-col p i {
    color: var(--blue);
    width: 1.5rem;
}

.footer-col p a {
    color: var(--gray);
    text-decoration: none;
}

.footer-col p a:hover {
    color: var(--blue);
}

.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    max-width: 1200px;
    margin: auto;
    font-size: 0.85rem;
    color: #555;
}

/* ===== BOUTON FLOTTANT ===== */
.floating-phone {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--blue);
    color: var(--white);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    box-shadow: 0 4px 20px rgba(30,136,229,0.25);
    z-index: 999;
    transition: var(--transition);
    text-decoration: none;
    animation: pulse 2s infinite;
}

.floating-phone:hover {
    transform: scale(1.1);
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 4px 20px rgba(30,136,229,0.2); }
    50% { box-shadow: 0 4px 40px rgba(30,136,229,0.35); }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 992px) {
    .devis-wrapper {
        grid-template-columns: 1fr;
    }
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    .devis-info {
        order: 2;
    }
    .devis-form {
        order: 1;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        flex-direction: column;
        background: var(--white);
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        padding: 1.5rem;
        text-align: center;
        border-top: 1px solid #E8EDF2;
        box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    }
    .nav-links.active {
        display: flex;
    }
    .burger {
        display: block;
    }
    .logo-header-img {
        height: 40px;
    }
    .hero h1 {
        font-size: 2.5rem;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
    .services-grid {
        grid-template-columns: 1fr 1fr;
    }
    .realisations-grid {
        grid-template-columns: 1fr;
    }
    .realisation-images {
        height: 160px;
    }
}

@media (max-width: 480px) {
    .services-grid {
        grid-template-columns: 1fr;
    }
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    .hero h1 {
        font-size: 2rem;
    }
    .logo-header-img {
        height: 35px;
    }
    .devis-step {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
}