/* ============================================================
   CS-LET — Chantier LET, Campus Santé Dorigny
   Swiss Style — clean, minimal, professional
   ============================================================ */

/* ── Reset & base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --color-bg:          #ffffff;
    --color-text:        #333333;
    --color-text-light:  #666666;
    --color-accent:      #5a7a8a;
    --color-accent-dark: #3d5a68;
    --color-overlay:     hsla(199, 17%, 75%, 0.34);
    --color-border:      #dde3e7;
    --color-today:       #e8f0f4;
    --color-nuisance-bg: #fff8f0;
    --color-footer-bg:   #f4f6f7;

    --font-stack:    -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
                     'Helvetica Neue', Arial, sans-serif;
    --max-width:     1200px;
    --radius:        4px;
    --radius-lg:     20px;
    --shadow:        0 2px 12px rgba(0,0,0,.08);
    --transition:    0.18s ease;
}

html { font-size: 16px; scroll-behavior: smooth; }

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

img { display: block; max-width: 100%; height: auto; }
a { color: var(--color-accent); text-decoration: none; }
a:hover { color: var(--color-accent-dark); text-decoration: underline; }
ul { list-style: none; }

/* ── Container ────────────────────────────────────────────── */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ── Header ───────────────────────────────────────────────── */
.site-header {
    background: var(--color-bg);
    border-bottom: 2px solid var(--color-accent);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.logo-link { display: flex; align-items: center; flex-shrink: 0; }
.logo { height: 80px; width: auto; }

.site-title-block {
    flex: 1;
}

.site-tagline {
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-accent-dark);
}

/* Mobile burger */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    margin-left: auto;
}
.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition);
}

/* ── Nav ──────────────────────────────────────────────────── */
.site-nav {
    background: var(--color-accent);
}

.nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.nav-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0;
}

.nav-link {
    display: block;
    padding: 0.75rem 1.25rem;
    color: #fff;
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.03em;
    text-decoration: none;
    transition: background var(--transition);
}

.nav-link:hover,
.nav-link--active {
    background: var(--color-accent-dark);
    color: #fff;
    text-decoration: none;
}

.nav-link--active {
    font-weight: 700;
}

/* ── Main ─────────────────────────────────────────────────── */
.site-main {
    min-height: calc(100vh - 200px);
}

/* ── Section wrappers ─────────────────────────────────────── */
.section { padding: 3rem 0; }
.section--page { padding: 2.5rem 0 4rem; }
.section--info { background: #f9fafb; }

/* ── Hero ─────────────────────────────────────────────────── */
.hero {
    position: relative;
    min-height: 420px;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: rgba(42, 60, 75, 0.45);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1.5rem;
}

.hero-box {
    background: var(--color-overlay);
    backdrop-filter: blur(4px);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255,255,255,0.25);
    padding: 2rem 2.5rem;
    max-width: 680px;
    text-align: center;
}

.hero-text {
    font-size: 1.35rem;
    font-weight: 400;
    color: #fff;
    line-height: 1.55;
}

.hero-text strong { font-weight: 700; }

/* ── Section typography ───────────────────────────────────── */
.section-title {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
    color: var(--color-text);
}

.section-lead {
    font-size: 1.05rem;
    color: var(--color-text-light);
    max-width: 760px;
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

.page-title {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-accent-dark);
    margin-bottom: 0.4rem;
    border-left: 4px solid var(--color-accent);
    padding-left: 0.9rem;
}

.page-subtitle {
    font-size: 1rem;
    color: var(--color-text-light);
    margin-bottom: 2rem;
    padding-left: 1.3rem;
}

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

.card {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.75rem;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-text);
}

.card-body {
    font-size: 0.95rem;
    color: var(--color-text-light);
    flex: 1;
    line-height: 1.65;
}

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
    display: inline-block;
    padding: 0.6rem 1.4rem;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    transition: background var(--transition), color var(--transition);
    text-decoration: none;
    align-self: flex-start;
}

.btn--primary {
    background: var(--color-accent);
    color: #fff;
    border: 2px solid var(--color-accent);
}
.btn--primary:hover {
    background: var(--color-accent-dark);
    border-color: var(--color-accent-dark);
    color: #fff;
    text-decoration: none;
}

.btn--secondary {
    background: transparent;
    color: var(--color-accent);
    border: 2px solid var(--color-accent);
}
.btn--secondary:hover {
    background: var(--color-accent);
    color: #fff;
    text-decoration: none;
}

/* ── A-propos content blocks ──────────────────────────────── */
.content-block {
    margin-bottom: 2.5rem;
    max-width: 820px;
}

.content-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-accent-dark);
    margin-bottom: 0.75rem;
}

.content-subtitle {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-text);
    margin-top: 1.25rem;
    margin-bottom: 0.5rem;
}

.content-list {
    list-style: disc;
    padding-left: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    color: var(--color-text);
    font-size: 0.97rem;
}

.content-image-block { margin: 2rem 0; }
.content-image {
    width: 100%;
    max-height: 480px;
    object-fit: cover;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.section-divider {
    border: none;
    border-top: 2px solid var(--color-border);
    margin: 3rem 0;
}

/* ── Specs grid ───────────────────────────────────────────── */
.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1.25rem;
    margin-top: 2.5rem;
}

.spec-item {
    background: var(--color-footer-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.25rem 1rem;
    text-align: center;
}

.spec-number {
    display: block;
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--color-accent);
    line-height: 1.2;
}

.spec-label {
    display: block;
    font-size: 0.8rem;
    color: var(--color-text-light);
    margin-top: 0.3rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

/* ── Planning / Informations ──────────────────────────────── */
.planning-block { margin-bottom: 2rem; }

.planning-figure { margin: 0; }
.planning-image {
    width: 100%;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.planning-placeholder {
    background: var(--color-footer-bg);
    border: 2px dashed var(--color-border);
    border-radius: var(--radius);
    padding: 3rem 2rem;
    text-align: center;
    color: var(--color-text-light);
    font-size: 1rem;
}

.download-block { margin: 1.5rem 0 2.5rem; }

.schema-block { margin-top: 3rem; }

.placeholder-text { color: var(--color-text-light); font-style: italic; }

/* ── Calendar nav ─────────────────────────────────────────── */
.cal-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    margin: 1.5rem 0 2rem;
}

.cal-nav__arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border: 2px solid var(--color-accent);
    border-radius: 50%;
    font-size: 1.2rem;
    color: var(--color-accent);
    transition: background var(--transition), color var(--transition);
    text-decoration: none;
    flex-shrink: 0;
}

.cal-nav__arrow:hover {
    background: var(--color-accent);
    color: #fff;
    text-decoration: none;
}

.cal-nav__month {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: -0.01em;
    min-width: 220px;
    text-align: center;
}

/* ── Calendar grid ────────────────────────────────────────── */
.cal-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 3px;
    background: var(--color-border);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: 2.5rem;
}

.cal-grid__header {
    background: var(--color-accent);
    color: #fff;
    text-align: center;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 0.6rem 0.25rem;
}

.cal-grid__cell {
    background: var(--color-bg);
    min-height: 90px;
    padding: 0.4rem 0.5rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.3rem;
    transition: background var(--transition);
}

.cal-grid__cell--empty {
    background: #f8f9fa;
}

.cal-grid__cell--today {
    background: var(--color-today);
}

.cal-grid__cell--nuisance {
    background: var(--color-nuisance-bg);
}

.cal-grid__day-num {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-light);
    line-height: 1;
}

.cal-grid__cell--today .cal-grid__day-num {
    background: var(--color-accent);
    color: #fff;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
}

.cal-grid__picto {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
}

.cal-grid__picto img {
    max-width: 56px;
    max-height: 56px;
    width: auto;
    height: auto;
    object-fit: contain;
}

/* ── Mobile list view (hidden on desktop) ─────────────────── */
.cal-list { display: none; }

/* ── Calendar legend ──────────────────────────────────────── */
.cal-legend {
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid var(--color-border);
}

.cal-legend__title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    color: var(--color-text);
}

.cal-legend__section { margin-bottom: 1.75rem; }

.cal-legend__subtitle {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-light);
    margin-bottom: 0.9rem;
}

.cal-legend__list {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.cal-legend__item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    background: var(--color-footer-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 0.5rem 0.85rem;
}

.cal-legend__item--future {
    opacity: 0.6;
}

.cal-legend__img {
    width: 40px;
    height: 40px;
    object-fit: contain;
    flex-shrink: 0;
}

.cal-legend__img-missing {
    font-size: 0.75rem;
    color: #999;
    width: 40px;
}

.cal-legend__label {
    font-size: 0.85rem;
    color: var(--color-text);
}

.cal-legend__section--future .cal-legend__label {
    color: var(--color-text-light);
}

/* ── Footer ───────────────────────────────────────────────── */
.site-footer {
    background: var(--color-footer-bg);
    border-top: 1px solid var(--color-border);
    padding: 2rem 0;
    margin-top: 3rem;
}

.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.footer-copy {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text);
}

.footer-disclaimer {
    font-size: 0.8rem;
    color: var(--color-text-light);
    max-width: 680px;
    margin: 0 auto;
    line-height: 1.5;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* ── Tablet (<=900px) ─────────────────────────────────────── */
@media (max-width: 900px) {
    .hero { min-height: 320px; }
    .hero-text { font-size: 1.15rem; }
    .hero-box { padding: 1.5rem 1.75rem; }

    .cal-grid__cell { min-height: 72px; }
    .cal-grid__picto img { max-width: 44px; max-height: 44px; }
}

/* ── Mobile (<=640px) ─────────────────────────────────────── */
@media (max-width: 640px) {
    /* Show burger, hide nav by default */
    .nav-toggle { display: flex; }

    .site-nav { display: none; }
    .site-nav.site-nav--open { display: block; }

    .nav-list { flex-direction: column; }
    .nav-link { padding: 0.85rem 1.5rem; border-bottom: 1px solid rgba(255,255,255,0.15); }

    .logo { height: 56px; }
    .site-tagline { font-size: 0.75rem; }

    .hero { min-height: 240px; }
    .hero-box { padding: 1.25rem 1.25rem; }
    .hero-text { font-size: 1rem; }

    .section { padding: 2rem 0; }

    /* Hide grid, show list on mobile */
    .cal-grid { display: none; }
    .cal-list { display: block; }

    .cal-list__ul {
        display: flex;
        flex-direction: column;
        gap: 0.75rem;
    }

    .cal-list__item {
        display: flex;
        align-items: center;
        gap: 1rem;
        background: var(--color-footer-bg);
        border: 1px solid var(--color-border);
        border-radius: var(--radius);
        padding: 0.75rem 1rem;
    }

    .cal-list__date {
        font-size: 0.9rem;
        font-weight: 600;
        color: var(--color-text);
        min-width: 150px;
    }

    .cal-list__picto-wrap {
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }

    .cal-list__picto-img {
        width: 40px;
        height: 40px;
        object-fit: contain;
    }

    .cal-list__picto-label {
        font-size: 0.8rem;
        color: var(--color-text-light);
    }

    .cal-list__empty {
        color: var(--color-text-light);
        font-style: italic;
        text-align: center;
        padding: 2rem 0;
    }

    .cal-legend__list { flex-direction: column; }

    .specs-grid { grid-template-columns: repeat(2, 1fr); }

    .cal-nav__month { font-size: 1.1rem; min-width: 160px; }
}