/* ============================================================
   FAQ PAGE - PREMIUM KNOWLEDGE BASE
   ============================================================ */

:root {
    --faq-accent: var(--color-accent);
    --faq-border: rgba(255, 255, 255, 0.1);
    --faq-glass: rgba(255, 255, 255, 0.03);
}

.page-faq {
    background: #000;
    color: #fff;
}

/* --- Hero Section --- */
.faq-hero {
    position: relative;
    padding: 6rem 10vw 4rem;
    overflow: hidden;
}

.faq-hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    opacity: 0.3;
    filter: brightness(0.4);
}

.faq-hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.faq-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, #000 0%, transparent 100%);
    z-index: 1;
}

.faq-hero-content {
    position: relative;
    z-index: 2;
}

.faq-hero-kicker {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.6em;
    color: var(--faq-accent);
    margin-bottom: 2rem;
    display: block;
    font-weight: 700;
}

.faq-hero-title {
    margin: 0;
    font-size: clamp(3rem, 7vw, 7rem);
    line-height: 0.9;
    letter-spacing: -0.05em;
    font-family: var(--font-heading);
}

.title-serif {
    font-family: 'Playfair Display', serif;
    font-style: italic;
    font-weight: 400;
}

/* --- Main Layout --- */
.faq-section {
    padding-bottom: 1.25rem;
}

.container {
    width: min(92%, 1400px);
    margin: 0 auto;
}

.faq-grid {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 8vw;
    align-items: start;
}

/* --- Sidebar Navigation --- */
.faq-sidebar {
    position: sticky;
    top: 12rem;
    display: flex;
    flex-direction: column;
    gap: 2.25rem;
}

.faq-nav-title {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.32em;
    color: rgba(255, 255, 255, 0.35);
}

.faq-nav {
    list-style: none;
    padding: 0;
    margin: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.faq-nav-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.faq-nav-link {
    display: flex;
    align-items: baseline;
    gap: 1.25rem;
    padding: 0.85rem 0.25rem;
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: rgba(255, 255, 255, 0.42);
    text-decoration: none;
    transition: color 0.4s ease, padding-left 0.4s cubic-bezier(0.33, 1, 0.68, 1);
}

.faq-nav-link span {
    font-size: 0.66rem;
    letter-spacing: 0.2em;
    color: rgba(255, 255, 255, 0.3);
    font-variant-numeric: tabular-nums;
    transition: color 0.4s ease;
}

.faq-nav-link:hover,
.faq-nav-link.active {
    color: #fff;
    padding-left: 0.85rem;
}

.faq-nav-link:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 4px;
    color: #fff;
}

.faq-nav-link:hover span,
.faq-nav-link.active span {
    color: var(--faq-accent);
}

.faq-nav-contact {
    margin-top: auto;
}

.faq-nav-contact-label {
    display: block;
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.3em;
    color: rgba(255, 255, 255, 0.35);
    margin-bottom: 1rem;
}

.faq-nav-contact a {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.95rem;
    color: #fff;
    text-decoration: none;
    border-bottom: 1px solid rgba(var(--color-accent-rgb), 0.4);
    padding-bottom: 0.25rem;
    transition: border-color 0.35s ease, color 0.35s ease;
}

.faq-nav-contact a:hover {
    color: var(--faq-accent);
    border-color: var(--faq-accent);
}

/* --- Liens internes (répertoire, tarifs, contact, etc.) --- */
.faq-main a {
    color: var(--color-accent);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-color: rgba(248, 6, 16, 0.4);
    transition: color 0.3s ease, text-decoration-color 0.3s ease;
}

.faq-main a:hover {
    color: var(--color-text);
    text-decoration-color: var(--color-accent);
}

/* --- Accordion Main --- */
.faq-category {
    margin-bottom: 8rem;
}

.category-title {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.3em;
    color: var(--faq-accent);
    margin-bottom: 4rem;
    display: block;
}

.accordion-item {
    border-bottom: 1px solid var(--faq-border);
}

.accordion-header {
    width: 100%;
    padding: 2.5rem 0;
    background: transparent;
    border: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    text-align: left;
    color: #fff;
    transition: all 0.4s ease;
}

.accordion-header h3 {
    font-size: 1.6rem;
    font-weight: 400;
    letter-spacing: -0.02em;
    max-width: 80%;
}

.accordion-icon {
    width: 24px;
    height: 24px;
    position: relative;
    transition: transform 0.6s cubic-bezier(0.19, 1, 0.22, 1);
}

.accordion-icon::before, .accordion-icon::after {
    content: "";
    position: absolute;
    background: #fff;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.accordion-icon::before { width: 100%; height: 1px; }
.accordion-icon::after { width: 1px; height: 100%; transition: transform 0.6s ease; }

.accordion-item.active .accordion-icon {
    transform: rotate(135deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: all 0.8s cubic-bezier(0.19, 1, 0.22, 1);
}

.accordion-inner {
    padding-bottom: 3rem;
    color: rgba(255, 255, 255, 0.5);
    font-size: 1.1rem;
    line-height: 1.8;
    max-width: 800px;
}

.accordion-inner p {
    margin-bottom: 1.5rem;
}

.accordion-inner ul {
    list-style: none;
    padding: 0;
}

.accordion-inner li {
    position: relative;
    padding-left: 2rem;
    margin-bottom: 1rem;
}

.accordion-inner li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.8em;
    width: 6px;
    height: 1px;
    background: var(--faq-accent);
}

/* --- Responsiveness --- */
@media (max-width: 1024px) {
    .faq-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    .faq-sidebar {
        position: static;
    }
    .faq-nav {
        display: flex;
        flex-wrap: wrap;
        gap: 0 2.25rem;
        border-top: none;
    }
    .faq-nav-item {
        border-bottom: none;
    }
    .faq-nav-link {
        padding: 0.5rem 0;
    }
    .faq-nav-contact {
        display: none;
    }
}

@media (max-width: 640px) {
    .faq-nav {
        gap: 0 1.5rem;
    }
    .accordion-header h3 {
        font-size: 1.3rem;
    }
}

@media (max-width: 768px) {
    .accordion-header h3 {
        font-size: 1.3rem;
    }
}