/* =========================================
   TADLO — Site vitrine
   Palette : Teal #0d4a47 / #1F6C68 · Cuivre #b5651d · Fond #f5f4f0
   ========================================= */

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

:root {
    --color-header:      #0d4a47;
    --color-hero:        #1F6C68;
    --color-accent:      #b5651d;
    --color-accent-dark: #8B4513;
    --color-dark:        #0d4a47;
    --color-text:        #333;
    --color-muted:       #666;
    --color-white:       #ffffff;
    --color-bg:          #f5f4f0;
    --color-green-light: #E1F5EE;
    --font-serif: 'Playfair Display', Georgia, serif;
    --font-sans:  'Inter', -apple-system, sans-serif;
    --container: 1200px;
    --radius:    8px;
    --radius-lg: 16px;
    --shadow-sm: 0 2px 8px rgba(13,74,71,.08);
    --shadow-md: 0 8px 24px rgba(13,74,71,.13);
    --shadow-lg: 0 16px 48px rgba(13,74,71,.18);
    --transition: 0.3s ease;
}

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--color-hero); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-header); }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ---- HEADER ---- */
.site-header {
    position: sticky; top: 0; z-index: 100;
    background-color: var(--color-header);
    box-shadow: 0 2px 12px rgba(0,0,0,.25);
}

.header-inner {
    display: flex; align-items: center; justify-content: space-between;
    padding-top: 12px; padding-bottom: 12px;
}

.logo { display: flex; align-items: center; }
.logo-img { height: 56px; width: auto; display: block; }

.main-nav { display: flex; align-items: center; }

.nav-menu { display: flex; list-style: none; gap: 4px; align-items: center; }

.nav-menu a {
    display: inline-block; padding: 9px 15px;
    color: #9FE1CB; font-weight: 500; font-size: 0.95rem;
    border-radius: var(--radius); transition: all var(--transition);
}
.nav-menu a:hover { background: rgba(255,255,255,.1); color: var(--color-white); }

.nav-menu .nav-cta {
    background-color: var(--color-accent); color: var(--color-white) !important;
    padding: 9px 18px; font-weight: 700;
}
.nav-menu .nav-cta:hover { background-color: var(--color-accent-dark); }

.nav-toggle {
    display: none; background: transparent; border: 0; cursor: pointer;
    width: 44px; height: 44px; padding: 10px;
    flex-direction: column; justify-content: space-between;
}
.nav-toggle span { display: block; height: 2px; background: var(--color-white); border-radius: 2px; transition: all var(--transition); }

/* ---- BUTTONS ---- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 13px 26px; font-family: var(--font-sans); font-size: 0.95rem; font-weight: 700;
    border-radius: var(--radius); border: 2px solid transparent;
    cursor: pointer; transition: all var(--transition); white-space: nowrap;
}
.btn-primary { background: var(--color-accent); color: var(--color-white); border-color: var(--color-accent); }
.btn-primary:hover { background: var(--color-accent-dark); border-color: var(--color-accent-dark); color: var(--color-white); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-outline { background: transparent; color: var(--color-white); border-color: rgba(255,255,255,.45); }
.btn-outline:hover { background: rgba(255,255,255,.1); border-color: var(--color-white); color: var(--color-white); }
.btn-white { background: var(--color-white); color: var(--color-header); border-color: var(--color-white); }
.btn-white:hover { background: var(--color-green-light); color: var(--color-header); }
.btn-small { padding: 9px 18px; font-size: 0.875rem; }
.btn-block { width: 100%; }

/* ---- HERO ---- */
.hero { background: var(--color-hero); color: var(--color-white); padding: 90px 0 80px; }
.hero-inner { text-align: center; max-width: 820px; margin: 0 auto; }
.hero-kicker { font-size: 0.875rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; opacity: .85; margin-bottom: 16px; }
.hero-title { font-family: var(--font-serif); font-size: clamp(2.8rem,7vw,5rem); font-weight: 900; line-height: 1.05; margin-bottom: 12px; color: var(--color-white); }
.hero-subtitle { font-family: var(--font-serif); font-size: clamp(1.2rem,2.5vw,1.6rem); font-style: italic; margin-bottom: 28px; opacity: .9; }
.hero-text { font-size: 1.05rem; line-height: 1.75; margin: 0 auto 36px; opacity: .95; max-width: 640px; }
.hero-text strong { color: var(--color-white); font-weight: 600; }
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ---- SÉPARATEURS CUIVRE ---- */
.pipe-divider { line-height: 0; display: block; width: 100%; }

.pipe-divider--hero-to-services  { background: var(--color-hero); }
.pipe-divider--services-to-about { background: var(--color-bg); }
.pipe-divider--about-to-devis    { background: var(--color-white); }

/* ---- HEADINGS ---- */
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-kicker { font-size: 0.8rem; font-weight: 700; letter-spacing: .15em; text-transform: uppercase; color: var(--color-accent); margin-bottom: 10px; }
.section-title { font-family: var(--font-serif); font-size: clamp(1.9rem,4vw,2.6rem); font-weight: 700; line-height: 1.2; color: var(--color-dark); margin-bottom: 14px; }
.section-desc { font-size: 1.05rem; color: var(--color-muted); line-height: 1.7; }

/* ---- SERVICES ---- */
.services { padding: 80px 0; background: var(--color-bg); }

.services-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(280px,1fr)); gap: 22px; }

.service-card {
    background: var(--color-white); padding: 32px 26px;
    border-radius: var(--radius-lg); box-shadow: var(--shadow-sm);
    transition: all var(--transition); border-top: 4px solid var(--color-hero);
}
.service-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-top-color: var(--color-accent); }

.service-icon {
    width: 48px; height: 48px; background: var(--color-green-light); border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: var(--color-hero); margin-bottom: 16px;
}
.service-card h3 { font-family: var(--font-serif); font-size: 1.2rem; font-weight: 700; color: var(--color-dark); margin-bottom: 10px; line-height: 1.3; }
.service-card p { color: var(--color-text); line-height: 1.65; }

.service-card--cta { background: var(--color-header); border-top-color: var(--color-accent); display: flex; flex-direction: column; justify-content: center; align-items: flex-start; }
.service-card--cta h3, .service-card--cta p { color: var(--color-white); }
.service-card--cta p { opacity: .9; margin-bottom: 20px; }

/* ---- À PROPOS ---- */
.about { padding: 80px 0; background: var(--color-white); }
.about-inner { display: grid; grid-template-columns: 1.3fr 1fr; gap: 64px; align-items: center; }
.about-content .section-kicker,
.about-content .section-title { text-align: left; }
.about-content .section-title { margin-bottom: 18px; }

.about-badge {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--color-green-light); border-left: 3px solid var(--color-hero);
    padding: 8px 14px; border-radius: var(--radius);
    margin-bottom: 18px; font-size: 0.88rem; font-weight: 600; color: var(--color-dark);
}
.about-badge svg { color: var(--color-hero); flex-shrink: 0; }

.about-content > p { font-size: 1rem; line-height: 1.8; color: var(--color-text); margin-bottom: 14px; }
.about-content > p strong { color: var(--color-dark); }

.about-list { list-style: none; display: grid; gap: 10px; margin-top: 8px; }
.about-list li {
    display: flex; align-items: center; gap: 10px;
    font-weight: 500; color: var(--color-dark); font-size: 0.95rem;
}
.about-list li::before {
    content: ''; width: 20px; height: 20px; min-width: 20px;
    background: var(--color-hero); border-radius: 50%;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
    background-repeat: no-repeat; background-position: center;
}

.about-stat-block {
    background: var(--color-hero); border-radius: var(--radius-lg);
    padding: 60px 40px; text-align: center; box-shadow: var(--shadow-md);
    display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px;
}
.stat-num { display: block; font-family: var(--font-serif); font-size: 4.5rem; font-weight: 900; line-height: 1; color: var(--color-white); }
.stat-label { display: block; font-size: 1rem; color: rgba(255,255,255,.85); letter-spacing: .04em; }

/* ---- DEVIS ---- */
.devis { padding: 80px 0; background: var(--color-bg); }
.devis-inner { display: grid; grid-template-columns: 1fr 1.2fr; gap: 64px; align-items: start; }
.devis-intro .section-kicker,
.devis-intro .section-title { text-align: left; }
.devis-intro .section-title { margin-bottom: 18px; }
.devis-intro > p { font-size: 1rem; line-height: 1.8; color: var(--color-text); margin-bottom: 28px; }

.devis-contact-block {
    background: var(--color-white); padding: 22px 24px;
    border-radius: var(--radius-lg); border-left: 4px solid var(--color-accent);
    box-shadow: var(--shadow-sm);
}
.devis-contact-block p { margin-bottom: 8px; }
.devis-contact-block p:last-child { margin-bottom: 0; }

.devis-form { background: var(--color-white); padding: 40px; border-radius: var(--radius-lg); box-shadow: var(--shadow-md); }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-weight: 600; font-size: 0.875rem; color: var(--color-dark); margin-bottom: 7px; }
.required { color: var(--color-accent); }
.form-group input,
.form-group textarea {
    width: 100%; padding: 13px 15px; font-family: var(--font-sans); font-size: 1rem;
    color: var(--color-dark); background: var(--color-bg);
    border: 2px solid transparent; border-radius: var(--radius); transition: all var(--transition);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--color-muted); opacity: .7; }
.form-group input:focus,
.form-group textarea:focus {
    outline: none; background: var(--color-white);
    border-color: var(--color-hero); box-shadow: 0 0 0 4px rgba(31,108,104,.1);
}
.form-group textarea { resize: vertical; min-height: 120px; font-family: var(--font-sans); }
.form-group--consent { margin-bottom: 22px; }
.checkbox-label { display: flex; align-items: flex-start; gap: 10px; cursor: pointer; font-weight: 400; font-size: 0.875rem; color: var(--color-text); line-height: 1.5; }
.checkbox-label input[type="checkbox"] { width: 18px; height: 18px; margin-top: 2px; accent-color: var(--color-hero); cursor: pointer; flex-shrink: 0; }
.form-note { font-size: 0.8rem; color: var(--color-muted); margin-top: 10px; text-align: center; }

/* ---- CONTACT ---- */
.contact { padding: 72px 0; background: var(--color-header); color: var(--color-white); }
.contact-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(200px,1fr)); gap: 40px; }
.contact-col h3 { font-family: var(--font-serif); font-size: 1.15rem; font-weight: 700; color: #9FE1CB; margin-bottom: 14px; }
.contact-col p { margin-bottom: 8px; opacity: .9; }
.contact-col a { color: var(--color-white); opacity: .9; }
.contact-col a:hover { color: #9FE1CB; opacity: 1; }
.insta-link {
    display: inline-flex; align-items: center; gap: 7px; margin-top: 10px;
    background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.2);
    padding: 7px 13px; border-radius: var(--radius);
    font-size: 0.875rem; color: var(--color-white); opacity: 1 !important;
    transition: background var(--transition);
}
.insta-link:hover { background: rgba(255,255,255,.2); color: var(--color-white); }

/* ---- FOOTER ---- */
.site-footer { background: #071615; color: rgba(255,255,255,.5); padding: 20px 0; font-size: 0.82rem; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.footer-links a { color: rgba(255,255,255,.5); margin: 0 2px; }
.footer-links a:hover { color: #9FE1CB; }

/* ---- COOKIES ---- */
.cookie-banner {
    display: none; position: fixed; bottom: 0; left: 0; right: 0; z-index: 999;
    background: #1a1a1a; border-top: 3px solid var(--color-accent);
    padding: 14px 28px; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap;
}
.cookie-banner p { color: rgba(255,255,255,.85); font-size: 0.9rem; flex: 1; min-width: 200px; }
.cookie-banner a { color: #9FE1CB; }
.cookie-actions { display: flex; gap: 10px; flex-shrink: 0; }
.btn-cookie-accept { background: var(--color-hero); color: var(--color-white); border: none; padding: 8px 18px; border-radius: var(--radius); font-weight: 700; font-size: 0.875rem; cursor: pointer; transition: background var(--transition); }
.btn-cookie-accept:hover { background: var(--color-header); }
.btn-cookie-refuse { background: transparent; color: rgba(255,255,255,.5); border: 1px solid rgba(255,255,255,.2); padding: 8px 18px; border-radius: var(--radius); font-size: 0.875rem; cursor: pointer; transition: all var(--transition); }
.btn-cookie-refuse:hover { border-color: rgba(255,255,255,.5); color: rgba(255,255,255,.8); }

/* ---- RESPONSIVE ---- */
@media (max-width: 900px) {
    .about-inner, .devis-inner { grid-template-columns: 1fr; gap: 40px; }
    .about-stat-block { padding: 40px 30px; }
    .stat-num { font-size: 3.5rem; }
}

@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .main-nav { position: relative; }
    .nav-menu {
        position: absolute; top: calc(100% + 14px); right: 0;
        background: var(--color-header); flex-direction: column; align-items: stretch;
        padding: 12px; gap: 4px; min-width: 200px; box-shadow: var(--shadow-md);
        border-radius: var(--radius-lg); transform: translateY(-8px);
        opacity: 0; pointer-events: none; transition: all var(--transition);
    }
    .nav-menu.is-open { transform: translateY(0); opacity: 1; pointer-events: auto; }
    .nav-menu a { text-align: center; }
    .hero { padding: 60px 0 70px; }
    .services, .about, .devis { padding: 60px 0; }
    .section-head { margin-bottom: 36px; }
    .devis-form { padding: 24px; }
    .footer-inner { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
    .hero-actions { flex-direction: column; width: 100%; }
    .hero-actions .btn { width: 100%; }
    .container { padding: 0 16px; }
    .cookie-banner { padding: 14px 16px; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
    html { scroll-behavior: auto; }
}

:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 2px; }