/* ==========================================================================
   EPC Brand Guide → Layout (Grid, Containers, Sections, Responsive)
   ========================================================================== */

/* -- Container ----------------------------------------------------------- */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--margin-mobile);
    padding-right: var(--margin-mobile);
}

/* -- Main content offset for sticky header ------------------------------- */
main {
    padding-top: var(--header-height);
}

/* -- Sections ------------------------------------------------------------ */
.section {
    padding-top: 48px;
    padding-bottom: 48px;
}

.section:nth-child(even) {
    background-color: var(--gris-clair);
}

.section:nth-child(odd) {
    background-color: var(--blanc);
}

.section-header {
    margin-bottom: var(--space-lg);
}

.section-header h2 {
    position: relative;
    display: inline-block;
    padding-bottom: var(--space-xs);
    margin-top: 0;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--or-profond);
    border-radius: 2px;
}

.section-number {
    display: block;
    font-size: var(--h4-size);
    /* Rendu plus petit que le H2 situé en-dessous */
    font-weight: var(--fw-bold);
    color: var(--or-profond);
    font-style: italic;
    margin-bottom: 0;
}

/* -- Grid System --------------------------------------------------------- */
.grid {
    display: grid;
    gap: var(--gutter);
}

.grid-2 {
    grid-template-columns: 1fr;
}

.grid-3 {
    grid-template-columns: 1fr;
}

.grid-4 {
    grid-template-columns: 1fr;
}

/* -- Flex Utilities ------------------------------------------------------ */
.flex {
    display: flex;
}

.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.flex-wrap {
    flex-wrap: wrap;
}

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

/* -- Hero Section -------------------------------------------------------- */
.hero {
    position: relative;
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, var(--bleu-marine) 0%, #1E3A6E 100%);
    color: var(--blanc);
    padding: var(--space-2xl) var(--margin-mobile);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        repeating-linear-gradient(45deg,
            transparent,
            transparent 40px,
            rgba(244, 215, 127, 0.03) 40px,
            rgba(244, 215, 127, 0.03) 41px);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero h1 {
    color: var(--blanc);
    margin-bottom: var(--space-sm);
}

.hero .subtitle {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    font-weight: var(--fw-bold);
    font-style: italic;
    color: var(--or-clair);
    margin-bottom: var(--space-md);
}

.hero .tagline {
    font-size: var(--body-size);
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: var(--space-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* -- Page Hero (Smaller for sub-pages) ----------------------------------- */
.page-hero {
    position: relative;
    padding: var(--space-xl) var(--margin-mobile);
    background: linear-gradient(135deg, var(--bleu-marine) 0%, #1E3A6E 100%);
    color: var(--blanc);
    text-align: center;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        repeating-linear-gradient(45deg,
            transparent,
            transparent 40px,
            rgba(244, 215, 127, 0.03) 40px,
            rgba(244, 215, 127, 0.03) 41px);
    pointer-events: none;
}

.page-hero h1 {
    color: var(--blanc);
    position: relative;
    z-index: 1;
}

.page-hero .subtitle {
    color: var(--or-clair);
    font-weight: var(--fw-bold);
    font-style: italic;
    font-size: clamp(1rem, 1.5vw, 1.25rem);
    position: relative;
    z-index: 1;
    margin-top: var(--space-xs);
}

/* -- Two Column Content -------------------------------------------------- */
.two-col {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
}

/* ========================================================================
   Responsive Breakpoints (Mobile-First)
   ======================================================================== */

/* -- Tablet (768px+) ----------------------------------------------------- */
@media (min-width: 768px) {
    .container {
        padding-left: var(--space-lg);
        padding-right: var(--space-lg);
    }

    .section {
        padding-top: 64px;
        padding-bottom: 64px;
    }

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

    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .two-col {
        grid-template-columns: 1fr 1fr;
    }
}

/* -- Desktop Small (1024px+) --------------------------------------------- */
@media (min-width: 1024px) {
    .section {
        padding-top: 80px;
        padding-bottom: 80px;
    }

    .grid-3 {
        grid-template-columns: repeat(3, 1fr);
    }

    .grid-4 {
        grid-template-columns: repeat(3, 1fr);
    }

    .hero {
        min-height: 70vh;
        padding: var(--space-2xl) var(--margin-desktop);
    }

    .page-hero {
        padding: var(--space-2xl) var(--margin-desktop);
    }
}

/* -- Desktop Large (1200px+) --------------------------------------------- */
@media (min-width: 1200px) {
    .container {
        padding-left: var(--margin-desktop);
        padding-right: var(--margin-desktop);
    }

    .section {
        padding-top: 100px;
        padding-bottom: 100px;
    }

    .grid-4 {
        grid-template-columns: repeat(4, 1fr);
    }
}