/* Charte graphique NautiStat
   Navy       #08263D  fond principal / texte fort
   Ocean      #087E8B  couleur Nautistat
   Turquoise  #19B5A5  accent / données actives
   White      #F7FAFC  arrière-plan
   Slate      #526574  texte secondaire
*/

:root {
    --navy: #08263D;
    --navy-deep: #051A2B;
    --ocean: #087E8B;
    --turquoise: #19B5A5;
    --white: #F7FAFC;
    --slate: #526574;
    --slate-light: #8CA2B4;
    --border: #DDE7F0;
    --shadow: 0 10px 30px rgba(8, 38, 61, 0.10);
    --radius: 14px;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
    font-family: "Segoe UI", "Helvetica Neue", Arial, system-ui, sans-serif;
    background: var(--white);
    color: var(--navy);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

a { color: var(--ocean); text-decoration: none; }
a:hover { color: var(--turquoise); }

/* ---------- En-tête ---------- */
.site-header {
    background: var(--navy);
    position: sticky;
    top: 0;
    z-index: 20;
    border-bottom: 1px solid rgba(247, 250, 252, 0.08);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
    gap: 1rem;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
}

.logo img { display: block; }

.logo-name {
    color: var(--white);
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.logo-accent { color: var(--turquoise); }

.site-nav { display: flex; gap: 1.75rem; }

.site-nav a {
    color: rgba(247, 250, 252, 0.85);
    font-weight: 500;
    padding: 0.25rem 0;
    border-bottom: 2px solid transparent;
}

.site-nav a:hover { color: var(--turquoise); }

.site-nav a.active {
    color: var(--turquoise);
    border-bottom-color: var(--turquoise);
}

/* ---------- Hero (accueil) ---------- */
.hero {
    position: relative;
    background: linear-gradient(160deg, var(--navy-deep) 0%, var(--navy) 55%, #0A3B4E 100%);
    color: var(--white);
    overflow: hidden;
}

.hero-waves {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
}

.hero-inner {
    position: relative;
    padding-top: 5rem;
    padding-bottom: 5rem;
    text-align: center;
}

.hero-eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-size: 0.85rem;
    color: var(--turquoise);
    margin: 0 0 1rem;
}

.hero h1 {
    font-size: clamp(2.2rem, 5vw, 3.6rem);
    line-height: 1.15;
    margin: 0 auto 1.25rem;
    max-width: 16em;
    font-weight: 700;
}

.hero-accent {
    background: linear-gradient(90deg, var(--turquoise), #4FD1C5);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-lead {
    color: rgba(247, 250, 252, 0.85);
    font-size: 1.15rem;
    max-width: 46rem;
    margin: 0 auto 2rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3.5rem;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    max-width: 760px;
    margin: 0 auto;
}

.stat {
    background: rgba(247, 250, 252, 0.06);
    border: 1px solid rgba(247, 250, 252, 0.12);
    border-radius: var(--radius);
    padding: 1rem;
    backdrop-filter: blur(4px);
}

.stat-value {
    display: block;
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--turquoise);
}

.stat-label { font-size: 0.85rem; color: rgba(247, 250, 252, 0.7); }

/* ---------- Boutons ---------- */
.btn {
    display: inline-block;
    padding: 0.8rem 1.6rem;
    border-radius: 10px;
    font-weight: 600;
    border: 2px solid transparent;
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn-primary {
    background: linear-gradient(90deg, var(--ocean), var(--turquoise));
    color: var(--white);
}

.btn-primary:hover {
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(25, 181, 165, 0.4);
}

.btn-ghost {
    border-color: rgba(247, 250, 252, 0.5);
    color: var(--white);
}

.btn-ghost:hover {
    border-color: var(--turquoise);
    color: var(--turquoise);
}

.btn-lg { font-size: 1.1rem; padding: 1rem 2.2rem; }

/* ---------- Sections ---------- */
.section { padding: 4rem 0; }
.section-white { background: var(--white); }
.section-tint {
    background: linear-gradient(180deg, var(--white) 0%, #EAF2F7 100%);
}

.section-title {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    text-align: center;
    margin-bottom: 2.5rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.card {
    background: #FFFFFF;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.75rem;
}

.card h3 { margin: 0.75rem 0 0.5rem; font-size: 1.15rem; }
.card p { margin: 0; color: var(--slate); }

.feature-icon {
    font-size: 1.8rem;
    line-height: 1;
}

.search-cta { text-align: center; }
.search-cta h2 { font-size: clamp(1.6rem, 3vw, 2.1rem); margin: 0 0 0.5rem; }
.search-cta p { color: var(--slate); margin-bottom: 1.75rem; }

/* ---------- Page générique ---------- */
.page-head {
    background: linear-gradient(140deg, var(--navy) 0%, var(--ocean) 130%);
    color: var(--white);
    padding: 3rem 0;
}

.page-head h1 { margin: 0 0 0.4rem; font-size: clamp(1.8rem, 4vw, 2.6rem); }
.page-head p { margin: 0; color: rgba(247, 250, 252, 0.85); max-width: 640px; }
.page-head-search { background: linear-gradient(140deg, var(--navy) 0%, #0A3B4E 100%); }

.page-content { max-width: 760px; margin: 2.5rem auto 0; padding-bottom: 3rem; }
.page-content h2 { color: var(--ocean); }
.page-content ul { color: var(--slate); }

/* ---------- Recherche ---------- */
.section-title + * { margin-top: 0; }

.search-form {
    background: #FFFFFF;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.5rem;
    margin: -2rem auto 2rem;
    position: relative;
    z-index: 5;
}

.search-bar {
    display: flex;
    gap: 0.75rem;
}

.search-bar input[type="text"] {
    flex: 1 1 auto;
    padding: 0.9rem 1.1rem;
    font-size: 1.05rem;
    border: 2px solid var(--border);
    border-radius: 10px;
    outline: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.search-bar input[type="text"]:focus {
    border-color: var(--ocean);
    box-shadow: 0 0 0 3px rgba(8, 126, 139, 0.15);
}

.search-btn {
    flex: 0 0 auto;
    padding: 0.9rem 1.8rem;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--white);
    background: linear-gradient(90deg, var(--ocean), var(--turquoise));
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.search-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(25, 181, 165, 0.35);
}

.search-filters { margin-top: 1.25rem; }

.search-filters summary {
    cursor: pointer;
    color: var(--slate);
    font-weight: 600;
    font-size: 0.9rem;
    user-select: none;
}

.filters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.filter-group label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--slate);
}

.filter-group select,
.filter-group input[type="number"] {
    padding: 0.65rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--navy);
    background: var(--white);
    outline: none;
}

.filter-group select:focus,
.filter-group input[type="number"]:focus {
    border-color: var(--ocean);
}

/* ---------- Résultats ---------- */
.search-status {
    text-align: center;
    min-height: 1.6em;
    margin-bottom: 1.25rem;
    font-weight: 600;
    color: var(--slate);
}

.results {
    display: grid;
    gap: 1.25rem;
}

.results-empty {
    grid-column: 1 / -1;
    text-align: center;
    color: var(--slate);
    background: #FFFFFF;
    border: 1px dashed var(--border);
    border-radius: var(--radius);
    padding: 2.5rem 1.5rem;
    margin: 0;
}

.result-group-title {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 0.75rem 0 0;
    font-size: 1.05rem;
    color: var(--navy);
}

.result-group-title .badge {
    background: var(--turquoise);
    color: var(--white);
    border-radius: 999px;
    padding: 0.1rem 0.65rem;
    font-size: 0.8rem;
}

.result-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1rem;
}

.result-card {
    background: #FFFFFF;
    border: 1px solid var(--border);
    border-left: 4px solid var(--ocean);
    border-radius: 10px;
    padding: 1rem 1.1rem;
    box-shadow: 0 2px 8px rgba(8, 38, 61, 0.06);
}

.result-card strong { display: block; font-size: 1.02rem; color: var(--navy); }
.result-card span { font-size: 0.85rem; color: var(--slate); }

/* ---------- Pied de page ---------- */
.site-footer {
    margin-top: auto;
    background: var(--navy);
    color: rgba(247, 250, 252, 0.7);
    padding: 1.5rem 0;
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.footer-inner p { margin: 0; font-size: 0.9rem; }

.footer-links { display: flex; gap: 1.5rem; }
.footer-links a { color: rgba(247, 250, 252, 0.8); font-size: 0.9rem; }
.footer-links a:hover { color: var(--turquoise); }

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
    .header-inner { flex-direction: column; gap: 0.5rem; }
    .search-bar { flex-direction: column; }
    .search-btn { width: 100%; }
    .footer-inner { flex-direction: column; text-align: center; }
    .hero-inner { padding-top: 3.5rem; padding-bottom: 3.5rem; }
}