/* ============================================
   FAQ Page — Premium Accordion Design
   Dependencies: bd-theme (style.css)
   ============================================ */

/* ══════════════════════════════════════════
   ANIMATIONS (self-contained)
   ══════════════════════════════════════════ */
@keyframes bd-float {
    0%, 100% { transform: translateY(0) rotate(0deg); opacity: 0.5; }
    33% { transform: translateY(-18px) rotate(2deg); opacity: 0.8; }
    66% { transform: translateY(-8px) rotate(-1deg); opacity: 0.6; }
}
@keyframes bd-float-slow {
    0%, 100% { transform: translateY(0) rotate(0deg); opacity: 0.4; }
    50% { transform: translateY(-12px) rotate(3deg); opacity: 0.7; }
}
@keyframes bd-shape-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ══════════════════════════════════════════
   FAQ HERO
   ══════════════════════════════════════════ */
.bd-faq-hero {
    position: relative;
    background: linear-gradient(135deg, #0f1724 0%, #1e293b 50%, #0f1724 100%);
    padding: var(--bd-space-4xl) var(--bd-space-lg) var(--bd-space-3xl);
    text-align: center;
    overflow: hidden;
    border-bottom: var(--bd-border-w) solid var(--bd-primary);
}
.bd-faq-hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}
.bd-faq-hero-shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0;
}
.bd-faq-hero-shape--1 {
    top: -80px;
    right: -80px;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(249,115,22,0.08) 0%, transparent 70%);
    animation: bd-float-slow 8s ease-in-out infinite;
}
.bd-faq-hero-shape--2 {
    bottom: -60px;
    left: -60px;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(59,130,246,0.06) 0%, transparent 70%);
    animation: bd-float 10s ease-in-out infinite;
    animation-delay: 2s;
}
.bd-faq-hero-shape--3 {
    top: 50%;
    left: 50%;
    width: 400px;
    height: 400px;
    margin: -200px 0 0 -200px;
    border: 1px solid rgba(255,255,255,0.04);
    animation: bd-shape-spin 40s linear infinite;
}
.bd-faq-hero-inner {
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
}
.bd-faq-hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(249,115,22,0.12);
    border: 2px solid rgba(249,115,22,0.3);
    color: var(--bd-primary-light);
    font-size: 0.65rem;
    font-weight: 800;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: var(--bd-space-lg);
}
.bd-faq-hero-title {
    font-size: var(--bd-text-4xl);
    font-weight: 900;
    color: #ffffff;
    margin-bottom: var(--bd-space-md);
    letter-spacing: -0.03em;
    line-height: 1.15;
}
.bd-faq-hero-sub {
    font-size: var(--bd-text-lg);
    color: rgba(255,255,255,0.7);
    margin-bottom: var(--bd-space-xl);
    max-width: 550px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

/* ── FAQ Search ── */
.bd-faq-search-wrap {
    position: relative;
    max-width: 480px;
    margin: 0 auto;
}
.bd-faq-search-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(255,255,255,0.4);
    pointer-events: none;
    z-index: 1;
}
.bd-faq-search {
    width: 100%;
    padding: 14px 16px 14px 46px;
    background: rgba(255,255,255,0.06);
    border: 2px solid rgba(255,255,255,0.10);
    color: #ffffff;
    font-size: var(--bd-text-base);
    font-family: var(--bd-font);
    outline: none;
    transition: all var(--bd-transition);
}
.bd-faq-search::placeholder {
    color: rgba(255,255,255,0.35);
}
.bd-faq-search:focus {
    border-color: var(--bd-primary);
    background: rgba(255,255,255,0.10);
    box-shadow: 0 0 0 3px rgba(249,115,22,0.1);
}

/* ══════════════════════════════════════════
   FAQ SECTION
   ══════════════════════════════════════════ */
.bd-faq-section {
    padding: var(--bd-space-3xl) 0 var(--bd-space-4xl);
    background: var(--bd-surface-2);
}
.bd-faq-list-wrap {
    max-width: 800px;
    margin: 0 auto;
}

/* ══════════════════════════════════════════
   ACCORDION — Premium
   ══════════════════════════════════════════ */
.bd-faq-list details {
    margin-bottom: var(--bd-space-md);
    background: var(--bd-card-bg);
    border: 2px solid var(--bd-border-light);
    border-radius: var(--bd-radius-card);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0,0,0,0.03);
}
.bd-faq-list details:hover {
    border-color: rgba(249,115,22,0.2);
    box-shadow: 0 4px 16px rgba(249,115,22,0.06);
}

/* Left accent bar */
.bd-faq-list details::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--bd-gradient-primary);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 1;
    border-radius: 0 3px 3px 0;
}
.bd-faq-list details[open]::before {
    opacity: 1;
}

/* Top gradient glow on open */
.bd-faq-list details[open] {
    border-color: rgba(249,115,22,0.15);
    box-shadow: 0 4px 24px rgba(249,115,22,0.08);
}

/* ── Summary ── */
.bd-faq-list summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--bd-space-md);
    padding: var(--bd-space-lg) var(--bd-space-lg) var(--bd-space-lg) calc(var(--bd-space-lg) + 6px);
    font-size: var(--bd-text-base);
    font-weight: 700;
    color: var(--bd-text);
    cursor: pointer;
    list-style: none;
    user-select: none;
    transition: all 0.25s ease;
    position: relative;
    z-index: 2;
    line-height: 1.4;
}
.bd-faq-list summary::-webkit-details-marker {
    display: none;
}
.bd-faq-list summary:hover {
    color: var(--bd-primary-dark);
    padding-left: calc(var(--bd-space-lg) + 12px);
}

/* ── Toggle Icon ── */
.bd-faq-list summary::after {
    content: '';
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--bd-text-xl);
    font-weight: 300;
    line-height: 1;
    color: var(--bd-primary);
    background: var(--bd-primary-subtle);
    border: 2px solid var(--bd-primary);
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
}
.bd-faq-list summary::after {
    content: '+';
}
.bd-faq-list details[open] summary::after {
    content: '−';
    background: var(--bd-gradient-primary);
    color: #ffffff;
    border-color: transparent;
    box-shadow: 0 2px 8px rgba(249,115,22,0.2);
}
.bd-faq-list details[open] summary {
    border-bottom: 2px solid var(--bd-border-light);
    padding-bottom: var(--bd-space-md);
    padding-left: calc(var(--bd-space-lg) + 6px);
    color: var(--bd-primary-dark);
}

/* ── Answer Panel ── */
.bd-faq-list details .bd-faq-answer {
    padding: var(--bd-space-md) var(--bd-space-lg) var(--bd-space-lg) calc(var(--bd-space-lg) + 6px);
    animation: bd-faq-slide-down 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes bd-faq-slide-down {
    from {
        opacity: 0;
        transform: translateY(-10px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}
.bd-faq-list details p {
    margin-bottom: var(--bd-space-md);
    color: var(--bd-text-soft);
    line-height: 1.8;
    font-size: var(--bd-text-base);
}
.bd-faq-list details p:last-child {
    margin-bottom: 0;
}
.bd-faq-list details ul,
.bd-faq-list details ol {
    margin: var(--bd-space-sm) 0 var(--bd-space-md) var(--bd-space-xl);
    color: var(--bd-text-soft);
}
.bd-faq-list details li {
    margin-bottom: var(--bd-space-xs);
}
.bd-faq-list details a {
    color: var(--bd-primary);
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 2px;
    transition: color var(--bd-transition);
}
.bd-faq-list details a:hover {
    color: var(--bd-primary-dark);
}

/* ── Category headings ── */
.bd-faq-list h2,
.bd-faq-list h3 {
    margin-top: var(--bd-space-3xl);
    margin-bottom: var(--bd-space-lg);
    padding-bottom: var(--bd-space-sm);
    border-bottom: 3px solid var(--bd-primary);
    display: inline-block;
    font-weight: 900;
    letter-spacing: -0.02em;
}

/* ── No Results ── */
.bd-faq-no-results {
    text-align: center;
    padding: var(--bd-space-3xl) var(--bd-space-lg);
    font-size: var(--bd-text-lg);
    color: var(--bd-text-muted);
    background: var(--bd-surface);
    border: 2px dashed var(--bd-border-light);
    border-radius: var(--bd-radius-card);
    display: none;
}
.bd-faq-no-results span {
    color: var(--bd-primary);
    font-weight: 700;
}

/* ══════════════════════════════════════════
   FAQ CONTACT CTA
   ══════════════════════════════════════════ */
.bd-faq-cta {
    padding: var(--bd-space-4xl) 0;
    background: var(--bd-surface);
    border-top: 2px solid var(--bd-border-light);
}
.bd-faq-cta-inner {
    text-align: center;
    max-width: 550px;
    margin: 0 auto;
}
.bd-faq-cta-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: var(--bd-primary-subtle);
    border: 2px solid var(--bd-primary);
    border-radius: 16px;
    font-size: 1.8rem;
    margin-bottom: var(--bd-space-lg);
    transition: transform var(--bd-transition);
}
.bd-faq-cta:hover .bd-faq-cta-icon {
    transform: scale(1.08) rotate(-5deg);
}
.bd-faq-cta-title {
    font-size: var(--bd-text-2xl);
    font-weight: 900;
    color: var(--bd-text);
    margin-bottom: var(--bd-space-sm);
    letter-spacing: -0.02em;
}
.bd-faq-cta-sub {
    font-size: var(--bd-text-base);
    color: var(--bd-text-soft);
    margin-bottom: var(--bd-space-xl);
    line-height: 1.6;
}
.bd-faq-cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: var(--bd-gradient-primary);
    color: #ffffff;
    font-weight: 800;
    font-size: var(--bd-text-base);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-decoration: none;
    border: none;
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(249,115,22,0.25);
    transition: all var(--bd-transition);
}
.bd-faq-cta-btn:hover {
    box-shadow: 0 6px 24px rgba(249,115,22,0.35);
    transform: translateY(-3px);
    color: #ffffff;
}
.bd-faq-cta-btn i {
    font-size: 0.85em;
    transition: transform var(--bd-transition);
}
.bd-faq-cta-btn:hover i {
    transform: translateX(4px);
}

/* ══════════════════════════════════════════
   DARK MODE
   ══════════════════════════════════════════ */
[data-theme="dark"] .bd-faq-hero {
    background: linear-gradient(135deg, #0a0f1a 0%, #1a1f2e 50%, #0a0f1a 100%);
    border-bottom-color: var(--bd-primary);
}
[data-theme="dark"] .bd-faq-hero-title {
    color: #ffffff;
}
[data-theme="dark"] .bd-faq-hero-sub {
    color: rgba(255,255,255,0.6);
}
[data-theme="dark"] .bd-faq-search {
    background: rgba(255,255,255,0.04);
    border-color: rgba(255,255,255,0.08);
    color: #ffffff;
}
[data-theme="dark"] .bd-faq-search:focus {
    background: rgba(255,255,255,0.08);
    border-color: var(--bd-primary);
}
[data-theme="dark"] .bd-faq-section {
    background: var(--bd-surface);
}
[data-theme="dark"] .bd-faq-list details {
    background: var(--bd-surface-2);
    border-color: var(--bd-border);
}
[data-theme="dark"] .bd-faq-list details:hover {
    border-color: rgba(249,115,22,0.2);
}
[data-theme="dark"] .bd-faq-list details[open] {
    background: var(--bd-surface-2);
    border-color: rgba(249,115,22,0.2);
}
[data-theme="dark"] .bd-faq-list details::before {
    background: var(--bd-gradient-primary);
}
[data-theme="dark"] .bd-faq-list summary::after {
    background: rgba(249,115,22,0.1);
    border-color: var(--bd-primary);
    color: var(--bd-primary-light);
}
[data-theme="dark"] .bd-faq-list details[open] summary::after {
    background: var(--bd-gradient-primary);
    border-color: transparent;
    color: #ffffff;
}
[data-theme="dark"] .bd-faq-list details[open] summary {
    border-bottom-color: var(--bd-border);
    color: var(--bd-primary-light);
}
[data-theme="dark"] .bd-faq-list summary:hover {
    color: var(--bd-primary-light);
}
[data-theme="dark"] .bd-faq-list details p {
    color: var(--bd-text-soft);
}
[data-theme="dark"] .bd-faq-cta {
    background: var(--bd-surface);
    border-top-color: var(--bd-border);
}
[data-theme="dark"] .bd-faq-cta-icon {
    background: rgba(249,115,22,0.1);
    border-color: var(--bd-primary);
}
[data-theme="dark"] .bd-faq-no-results {
    background: var(--bd-surface-2);
    border-color: var(--bd-border);
    color: var(--bd-text-muted);
}

/* ══════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════ */
@media (max-width: 900px) {
    .bd-faq-hero {
        padding: var(--bd-space-3xl) var(--bd-space-md) var(--bd-space-2xl);
    }
    .bd-faq-hero-title {
        font-size: var(--bd-text-3xl);
    }
}
@media (max-width: 600px) {
    .bd-faq-hero {
        padding: var(--bd-space-2xl) var(--bd-space-sm) var(--bd-space-xl);
    }
    .bd-faq-hero-title {
        font-size: var(--bd-text-2xl);
    }
    .bd-faq-hero-sub {
        font-size: var(--bd-text-sm);
    }
    .bd-faq-hero-badge {
        font-size: 0.55rem;
        padding: 6px 14px;
    }
    .bd-faq-search {
        padding: 12px 14px 12px 40px;
        font-size: var(--bd-text-sm);
    }
    .bd-faq-search-icon {
        left: 14px;
        width: 16px;
        height: 16px;
    }
    .bd-faq-section {
        padding: var(--bd-space-2xl) 0 var(--bd-space-3xl);
    }
    .bd-faq-list summary {
        padding: var(--bd-space-md) var(--bd-space-md) var(--bd-space-md) calc(var(--bd-space-md) + 4px);
        font-size: var(--bd-text-sm);
    }
    .bd-faq-list details .bd-faq-answer {
        padding: var(--bd-space-sm) var(--bd-space-md) var(--bd-space-md) calc(var(--bd-space-md) + 4px);
    }
    .bd-faq-list summary::after {
        width: 30px;
        height: 30px;
        font-size: var(--bd-text-lg);
    }
    .bd-faq-cta {
        padding: var(--bd-space-3xl) 0;
    }
    .bd-faq-cta-title {
        font-size: var(--bd-text-xl);
    }
    .bd-faq-cta-icon {
        width: 52px;
        height: 52px;
        font-size: 1.4rem;
        border-radius: 12px;
    }
    .bd-faq-cta-btn {
        padding: 12px 24px;
        font-size: var(--bd-text-sm);
    }
}