/* ═══════════════════════════════════════════════════════════
   FAQ PAGE — page-specific styles
   ═══════════════════════════════════════════════════════════ */

.faq-hero {
    padding: 160px 0 80px;
    border-bottom: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.faq-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 320px;
    background: radial-gradient(ellipse, rgba(62, 243, 210, 0.07) 0%, transparent 70%);
    pointer-events: none;
}

.faq-hero-inner {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 40px;
}

.faq-hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.2rem, 4vw, 3.2rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 16px;
}

.faq-hero-sub {
    font-size: 1rem;
    color: var(--muted);
    line-height: 1.7;
    max-width: 480px;
}

.faq-hero-right {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 8px;
}

.faq-count-item {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.08em;
    color: var(--muted);
    display: flex;
    align-items: center;
    gap: 8px;
}

.faq-count-item strong {
    color: var(--text);
    font-weight: 500;
}

.faq-count-dot {
    width: 4px;
    height: 4px;
    background: var(--border);
    border-radius: 50%;
}

.faq-body {
    padding: 80px 0 120px;
}

.faq-filter {
    display: flex;
    gap: 4px;
    margin-bottom: 56px;
    flex-wrap: wrap;
}

.filter-btn {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
    padding: 8px 18px;
    border-radius: 8px;
    border: 1px solid transparent;
    transition: all 0.2s;
}

.filter-btn:hover {
    color: var(--text);
    border-color: var(--border);
}

.filter-btn.active {
    color: var(--accent);
    border-color: rgba(62, 243, 210, 0.3);
    background: rgba(62, 243, 210, 0.06);
}

.faq-group {
    margin-bottom: 64px;
}

.faq-group.hidden {
    display: none;
}

.faq-group-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
}

.faq-group-tag {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent);
    display: flex;
    align-items: center;
    gap: 8px;
}

.faq-group-tag::before {
    content: '';
    width: 18px;
    height: 1px;
    background: var(--accent);
}

.faq-group-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.faq-group-count {
    margin-left: auto;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.06em;
    color: var(--muted);
    opacity: 0.5;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.faq-item {
    border-bottom: 1px solid var(--border);
    background: var(--surface);
    transition: background 0.2s;
}

.faq-item:last-child {
    border-bottom: 0;
}

.faq-item.open {
    background: var(--surface2);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 22px 28px;
    text-align: left;
    cursor: pointer;
    transition: background 0.2s;
}

.faq-question:hover {
    background: rgba(255, 255, 255, 0.02);
}

.faq-question-text {
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text);
    line-height: 1.5;
    flex: 1;
}

.faq-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: border-color 0.2s, background 0.2s, transform 0.35s cubic-bezier(.22, 1, .36, 1);
    color: var(--muted);
}

.faq-item.open .faq-icon {
    border-color: var(--accent);
    background: rgba(62, 243, 210, 0.1);
    color: var(--accent);
    transform: rotate(45deg);
}

.faq-icon svg {
    width: 12px;
    height: 12px;
    stroke: currentColor;
    fill: none;
    stroke-width: 1.8;
    stroke-linecap: round;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(.22, 1, .36, 1);
}

.faq-item.open .faq-answer {
    max-height: 800px;
}

.faq-answer-inner {
    padding: 20px 28px 24px;
    font-size: 0.9rem;
    color: var(--muted);
    line-height: 1.8;
    border-top: 1px solid var(--border-soft);
}

.faq-answer-inner p {
    margin-bottom: 12px;
}

.faq-answer-inner p:last-child {
    margin-bottom: 0;
}

.faq-answer-inner strong {
    color: var(--text);
    font-weight: 500;
}

.faq-answer-inner a {
    color: var(--accent);
    text-decoration: underline;
    text-decoration-color: rgba(62, 243, 210, 0.3);
    transition: text-decoration-color 0.2s;
}

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

.faq-answer-inner .answer-note {
    display: inline-flex;
    align-items: flex-start;
    gap: 8px;
    background: rgba(62, 243, 210, 0.04);
    border: 1px solid rgba(62, 243, 210, 0.12);
    border-radius: 8px;
    padding: 12px 16px;
    margin-top: 12px;
    font-size: 0.85rem;
    line-height: 1.65;
}

.answer-note-icon {
    color: var(--accent);
    flex-shrink: 0;
    margin-top: 1px;
    font-size: 13px;
}

.faq-cta {
    border-top: 1px solid var(--border);
    padding: 64px 0;
    text-align: center;
}

.faq-cta-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 10px;
}

.faq-cta-sub {
    font-size: 0.9375rem;
    color: var(--muted);
    margin-bottom: 28px;
    line-height: 1.7;
}

@media (max-width: 900px) {
    .faq-hero-inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .faq-hero-right {
        align-items: flex-start;
    }
}

@media (max-width: 600px) {
    .faq-hero {
        padding: 140px 0 60px;
    }

    .faq-body {
        padding: 48px 0 80px;
    }

    .faq-question {
        padding: 18px 20px;
    }

    .faq-answer-inner {
        padding: 16px 20px 20px;
    }
}