/* ===== LEVEL 1 — ARTISAN PLOMBIER ===== */
/* Site vitrine d'entrée de gamme : volontairement basique et statique.
   Polices système, couleurs à plat, aucune ombre, aucune animation. */

:root {
    --primary: #1a5276;
    --primary-dark: #154360;
    --text: #333333;
    --text-light: #666666;
    --bg: #ffffff;
    --bg-alt: #f2f2f2;
    --border: #cccccc;
}

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

body {
    font-family: Arial, Helvetica, sans-serif;
    color: var(--text);
    line-height: 1.5;
    background: var(--bg);
    font-size: 15px;
}

.container {
    max-width: 1040px;
    margin: 0 auto;
    padding: 0 20px;
}

/* HEADER */
.header {
    background: #ffffff;
    border-bottom: 1px solid var(--border);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
}
.logo {
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--primary);
    text-decoration: none;
}
.logo-icon { font-size: 1.2rem; }
.nav { display: flex; align-items: center; gap: 22px; }
.nav a {
    text-decoration: none;
    color: var(--text);
    font-size: 0.9rem;
}
.nav a:hover { text-decoration: underline; }
.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* BUTTONS */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 3px;
    font-weight: bold;
    text-decoration: none;
    font-size: 0.9rem;
    cursor: pointer;
    border: 1px solid var(--primary);
}
.btn-sm { padding: 6px 14px; font-size: 0.8rem; }
.btn-primary {
    background: var(--primary);
    color: #ffffff;
}
.btn-primary:hover { background: var(--primary-dark); }
.btn-outline {
    color: var(--primary);
    background: #ffffff;
}
.btn-outline:hover { background: var(--bg-alt); }

/* HERO */
.hero {
    padding: 50px 0;
    background: var(--primary-dark);
    color: #ffffff;
    text-align: center;
}
.hero-bg { display: none; }
.hero h1 {
    font-size: 2rem;
    margin-bottom: 14px;
}
.hero-sub {
    font-size: 1.05rem;
    margin-bottom: 24px;
}
.hero-actions {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
    flex-wrap: wrap;
    justify-content: center;
}
.hero .btn-primary { background: #ffffff; color: var(--primary); border-color: #ffffff; }
.hero .btn-outline { color: #ffffff; border-color: #ffffff; background: transparent; }
.hero-badges { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; font-size: 0.9rem; }

/* SECTIONS */
section { padding: 50px 0; }
/* Alternance par type de section, pour ne JAMAIS repeindre le hero (sinon le
   fond gris écrasait le fond foncé du hero -> texte blanc illisible). */
section:nth-of-type(even):not(.hero) { background: var(--bg-alt); }
h2 {
    font-size: 1.6rem;
    text-align: center;
    margin-bottom: 8px;
    color: var(--primary);
}
.section-sub {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 32px;
}

/* GRID */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

/* CARDS */
.card {
    background: #ffffff;
    border: 1px solid var(--border);
    padding: 24px 20px;
    text-align: center;
}
.card-icon { font-size: 2rem; margin-bottom: 12px; }
.card h3 {
    font-size: 1.05rem;
    margin-bottom: 8px;
    color: var(--primary);
}
.card p { font-size: 0.9rem; color: var(--text-light); }

/* ZONE */
.zone-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    align-items: start;
}
.zone-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}
.zone-item {
    padding: 10px 14px;
    background: #ffffff;
    border: 1px solid var(--border);
    font-size: 0.9rem;
}

/* TESTIMONIALS */
.testimonial {
    background: #ffffff;
    padding: 22px 20px;
    border: 1px solid var(--border);
}
.stars { margin-bottom: 10px; }
.testimonial p {
    color: var(--text);
    margin-bottom: 12px;
    font-size: 0.9rem;
}
.author {
    font-weight: bold;
    color: var(--primary);
    font-size: 0.9rem;
}

/* CONTACT */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 36px;
    align-items: start;
}
.contact-info { display: flex; flex-direction: column; gap: 18px; }
.contact-item strong { display: block; margin-bottom: 4px; }
.contact-item a {
    color: var(--primary);
    font-size: 1rem;
}
.contact-item p { font-size: 0.9rem; color: var(--text-light); }
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.contact-form input,
.contact-form select,
.contact-form textarea {
    padding: 9px 12px;
    border: 1px solid var(--border);
    border-radius: 3px;
    font-size: 0.9rem;
    font-family: inherit;
    color: var(--text);
    background: #ffffff;
}
.contact-form textarea { resize: vertical; }
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    border-color: var(--primary);
    outline: none;
}
.contact-form .btn { align-self: flex-start; }

/* FOOTER */
.footer {
    background: var(--primary-dark);
    color: #ffffff;
    padding: 20px 0;
    text-align: center;
    font-size: 0.85rem;
}
.footer-inner { display: flex; flex-direction: column; gap: 4px; }

/* RESPONSIVE */
@media (max-width: 900px) {
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    section { padding: 36px 0; }
    .menu-toggle { display: block; }
    .nav {
        display: none;
        position: absolute;
        top: 60px; left: 0; right: 0;
        flex-direction: column;
        align-items: stretch;
        background: #ffffff;
        padding: 12px 20px;
        border-bottom: 1px solid var(--border);
        gap: 4px;
    }
    .nav a { padding: 10px 4px; }
    .nav .btn-sm { text-align: center; margin-top: 8px; }
    .nav-open { display: flex; }
    .header { position: relative; }
    .hero h1 { font-size: 1.6rem; }
    .hero h1 br, .hero-sub br { display: none; }
    .grid-3 { grid-template-columns: 1fr; }
    .zone-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .zone-list { grid-template-columns: 1fr; }
}