/* ============================================================
   ARCHETYPE E — FAQ Page (Content-Only Styles)
   Prefix: zn-
   Loaded alongside style.css which provides shared base styles
   ============================================================ */

/* --- Page Hero --- */
.zn-page-hero {
    padding-top: calc(var(--header-height) + 72px);
    padding-bottom: 64px;
    background: linear-gradient(160deg,
        color-mix(in srgb, var(--primary-color) 20%, var(--bg-white)) 0%,
        var(--bg-white) 70%);
    text-align: center;
}
.zn-page-title {
    font-size: 3rem; font-weight: 800; line-height: 1.15;
    color: var(--text-dark); margin-bottom: 16px; letter-spacing: -0.02em;
}
.zn-page-intro {
    font-size: 1.15rem; line-height: 1.7; color: var(--text-body);
    max-width: 680px; margin: 0 auto;
}

/* --- FAQ Section (2-column visible grid) --- */
.zn-faq-section {
    padding: 80px 0 96px;
    background: var(--bg-white);
}
.zn-faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
    max-width: 960px;
    margin: 0 auto;
}
.zn-faq-cell {
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 32px 28px;
    transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}
.zn-faq-cell:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: color-mix(in srgb, var(--primary-color) 40%, var(--border-color));
}
.zn-faq-cell-full {
    grid-column: 1 / -1;
}
.zn-faq-q {
    font-size: 1.1rem; font-weight: 700; color: var(--text-dark);
    margin-bottom: 12px; line-height: 1.35;
}
.zn-faq-a {
    font-size: 0.95rem; color: var(--text-body); line-height: 1.7;
}

/* ── Details/Summary FAQ support ── */
details.zn-faq-item summary.zn-faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    cursor: pointer;
    list-style: none;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-dark);
}
details.zn-faq-item summary.zn-faq-question::-webkit-details-marker { display: none; }
details.zn-faq-item summary.zn-faq-question::marker { content: ''; }
details.zn-faq-item summary.zn-faq-question::after {
    content: '+';
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-muted);
    flex-shrink: 0;
    transition: transform 0.3s ease;
}
details.zn-faq-item[open] summary.zn-faq-question::after {
    content: '\2212';
}
.zn-faq-answer {
    padding: 0 24px 20px;
}
.zn-faq-answer p {
    font-size: 0.95rem;
    color: var(--text-body);
    line-height: 1.7;
}

/* --- Responsive: 768px --- */
@media (max-width: 768px) {
    .zn-page-hero { padding-top: calc(var(--header-height) + 48px); padding-bottom: 48px; }
    .zn-page-title { font-size: 2rem; }
    .zn-page-intro { font-size: 1rem; }
    .zn-faq-section { padding: 56px 0 72px; }
    .zn-faq-grid { grid-template-columns: 1fr; gap: 20px; }
    .zn-faq-cell { padding: 24px 22px; }
    .zn-faq-cell-full { grid-column: auto; }
    .zn-faq-q { font-size: 1rem; }
}

/* --- Responsive: 480px --- */
@media (max-width: 480px) {
    .zn-page-title { font-size: 1.7rem; }
    .zn-faq-cell { padding: 20px 18px; }
}

/* ── Section headings for extra content ── */
.zn-section-heading {
    font-size: 2.25rem;
    font-weight: 800;
    line-height: 1.2;
    text-align: center;
    margin-bottom: 12px;
}
.zn-section-intro {
    font-size: 1.063rem;
    line-height: 1.7;
    text-align: center;
    opacity: 0.7;
    max-width: 640px;
    margin: 0 auto 40px;
}

/* ── Extra section spacing ── */
.zn-features-section + .zn-features-section {
    margin-top: 40px;
    padding-top: 60px;
    border-top: 1px solid rgba(255,255,255,0.06);
}

@media (max-width: 768px) {
    .zn-section-heading { font-size: 1.75rem; }
}
@media (max-width: 480px) {
    .zn-section-heading { font-size: 1.5rem; }
}

/* --- FAQ Accordion Items (items 6-20) --- */
.zn-faq-item {
    max-width: 960px;
    margin: 0 auto 12px;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
}
.zn-faq-item:hover {
    border-color: color-mix(in srgb, var(--primary-color) 40%, var(--border-color));
    box-shadow: var(--shadow-sm);
}
.zn-faq-trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 24px 28px;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-dark);
    line-height: 1.35;
    text-align: left;
    background: none;
    border: none;
    cursor: pointer;
    gap: 16px;
}
.zn-faq-trigger:hover {
    color: var(--primary-color);
}
.zn-faq-icon {
    flex-shrink: 0;
    transition: transform var(--transition-base);
    color: var(--text-body);
}
.zn-faq-trigger[aria-expanded="true"] .zn-faq-icon {
    transform: rotate(180deg);
}
.zn-faq-panel {
    padding: 0 28px 24px;
    font-size: 0.95rem;
    color: var(--text-body);
    line-height: 1.7;
}
.zn-faq-panel[hidden] {
    display: none;
}

@media (max-width: 768px) {
    .zn-faq-item { margin-left: 24px; margin-right: 24px; }
    .zn-faq-trigger { padding: 20px 22px; font-size: 1rem; }
    .zn-faq-panel { padding: 0 22px 20px; }
}
@media (max-width: 480px) {
    .zn-faq-item { margin-left: 16px; margin-right: 16px; }
    .zn-faq-trigger { padding: 18px 18px; }
    .zn-faq-panel { padding: 0 18px 18px; }
}