/* Smart FAQs - Frontend Styles */
/* =============================== */

:root {
    --sfaq-primary: #3b82f6;
    --sfaq-primary-light: color-mix(in srgb, var(--sfaq-primary) 12%, transparent);
    --sfaq-primary-border: color-mix(in srgb, var(--sfaq-primary) 35%, transparent);
    --sfaq-radius: 12px;
    --sfaq-radius-sm: 8px;
    --sfaq-shadow: 0 1px 3px rgba(0,0,0,.08), 0 4px 16px rgba(0,0,0,.06);
    --sfaq-shadow-hover: 0 4px 12px rgba(0,0,0,.12);
    --sfaq-border: #e5e7eb;
    --sfaq-bg: #ffffff;
    --sfaq-bg-hover: #f9fafb;
    --sfaq-text: #111827;
    --sfaq-text-muted: #6b7280;
    --sfaq-answer-bg: #f9fafb;
    --sfaq-transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
    --sfaq-font: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans Thai', sans-serif;
}

.sfaq-wrapper {
    font-family: var(--sfaq-font);
    margin: 0 auto;
    color: var(--sfaq-text);
}

/* ── Search Bar ─────────────────────────── */
.sfaq-search-bar {
    margin-bottom: 20px;
    width: 100%;
}

.sfaq-search-inner {
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
}

.sfaq-search-icon {
    position: absolute;
    left: 16px;
    width: 18px;
    height: 18px;
    color: var(--sfaq-text-muted);
    pointer-events: none;
    transition: color var(--sfaq-transition);
}

.sfaq-search-inner:focus-within .sfaq-search-icon {
    color: var(--sfaq-primary);
}

.sfaq-search-input {
    width: 100%;
    padding: 14px 48px 14px 48px;
    font-size: 15px;
    font-family: var(--sfaq-font);
    border: 2px solid var(--sfaq-border);
    border-radius: 50px;
    background: var(--sfaq-bg);
    color: var(--sfaq-text);
    outline: none;
    transition: border-color var(--sfaq-transition), box-shadow var(--sfaq-transition);
    box-sizing: border-box;
}

.sfaq-search-input:focus {
    border-color: var(--sfaq-primary);
    box-shadow: 0 0 0 4px var(--sfaq-primary-light);
}

.sfaq-search-input::placeholder {
    color: var(--sfaq-text-muted);
}

.sfaq-search-clear {
    position: absolute;
    right: 16px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--sfaq-text-muted);
    font-size: 16px;
    padding: 4px;
    line-height: 1;
    border-radius: 50%;
    transition: color var(--sfaq-transition), background var(--sfaq-transition);
}

.sfaq-search-clear:hover {
    color: var(--sfaq-text);
    background: var(--sfaq-border);
}

.sfaq-search-results-count {
    margin-top: 8px;
    font-size: 13px;
    color: var(--sfaq-text-muted);
    padding-left: 16px;
    font-style: italic;
}

/* ── Tabs ───────────────────────────────── */
.sfaq-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--sfaq-border);
}

.sfaq-tab {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    font-size: 14px;
    font-weight: 500;
    font-family: var(--sfaq-font);
    color: var(--sfaq-text-muted);
    background: transparent;
    border: 2px solid transparent;
    border-radius: 50px;
    cursor: pointer;
    transition: all var(--sfaq-transition);
    white-space: nowrap;
}

.sfaq-tab:hover {
    color: var(--sfaq-primary);
    background: var(--sfaq-primary-light);
    border-color: var(--sfaq-primary-border);
}

.sfaq-tab.active {
    color: var(--sfaq-primary);
    background: var(--sfaq-primary-light);
    border-color: var(--sfaq-primary);
}

.sfaq-tab-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    font-size: 11px;
    font-weight: 600;
    background: var(--sfaq-border);
    color: var(--sfaq-text-muted);
    border-radius: 10px;
    transition: all var(--sfaq-transition);
}

.sfaq-tab.active .sfaq-tab-count {
    background: var(--sfaq-primary);
    color: #fff;
}

/* ── Accordion Items ────────────────────── */
.sfaq-accordion {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sfaq-item {
    background: var(--sfaq-bg);
    border: 1.5px solid var(--sfaq-border);
    border-radius: var(--sfaq-radius);
    overflow: hidden;
    transition: border-color var(--sfaq-transition), box-shadow var(--sfaq-transition);
}

.sfaq-item:hover {
    border-color: var(--sfaq-primary-border);
}

.sfaq-item.open {
    border-color: var(--sfaq-primary);
    box-shadow: var(--sfaq-shadow);
}

.sfaq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    width: 100%;
    padding: 18px 20px;
    font-size: 15px;
    font-weight: 600;
    font-family: var(--sfaq-font);
    color: var(--sfaq-text);
    background: var(--sfaq-bg);
    border: none;
    cursor: pointer;
    text-align: left;
    transition: background var(--sfaq-transition), color var(--sfaq-transition);
    line-height: 1.5;
}

.sfaq-question:hover {
    background: var(--sfaq-bg-hover);
    color: var(--sfaq-primary);
}

.sfaq-item.open .sfaq-question {
    color: var(--sfaq-primary);
}

.sfaq-question-text {
    flex: 1;
}

/* Highlight matched text */
.sfaq-highlight {
    background: color-mix(in srgb, #fbbf24 40%, transparent);
    color: #92400e;
    border-radius: 3px;
    padding: 0 2px;
}

/* ── Icon ───────────────────────────────── */
.sfaq-icon {
    flex-shrink: 0;
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--sfaq-primary-light);
    border: 1.5px solid var(--sfaq-primary-border);
    transition: transform var(--sfaq-transition), background var(--sfaq-transition);
}

.sfaq-icon svg {
    width: 12px;
    height: 12px;
    color: var(--sfaq-primary);
    transition: opacity var(--sfaq-transition);
}

.sfaq-icon-plus  { display: block; }
.sfaq-icon-minus { display: none; }

.sfaq-item.open .sfaq-icon {
    background: var(--sfaq-primary);
    border-color: var(--sfaq-primary);
    transform: rotate(0deg);
}

.sfaq-item.open .sfaq-icon svg {
    color: #fff;
}

.sfaq-item.open .sfaq-icon-plus  { display: none; }
.sfaq-item.open .sfaq-icon-minus { display: block; }

/* ── Answer Panel ───────────────────────── */
.sfaq-answer {
    overflow: hidden;
    transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.sfaq-answer-inner {
    padding: 0 20px 20px;
    font-size: 15px;
    line-height: 1.7;
    color: #374151;
    border-top: 1px solid var(--sfaq-border);
    padding-top: 16px;
}

.sfaq-answer-inner p:first-child { margin-top: 0; }
.sfaq-answer-inner p:last-child  { margin-bottom: 0; }

.sfaq-answer-inner ul,
.sfaq-answer-inner ol {
    padding-left: 20px;
}

.sfaq-answer-inner a {
    color: var(--sfaq-primary);
    text-decoration: underline;
}

/* ── No Results ─────────────────────────── */
.sfaq-no-results {
    text-align: center;
    padding: 48px 24px;
    color: var(--sfaq-text-muted);
}

.sfaq-no-results svg {
    width: 48px;
    height: 48px;
    margin: 0 auto 12px;
    display: block;
    opacity: 0.35;
}

.sfaq-no-results p {
    font-size: 16px;
    margin: 0;
}

/* ── Loading Spinner ────────────────────── */
.sfaq-loading {
    text-align: center;
    padding: 32px;
    color: var(--sfaq-text-muted);
}

.sfaq-spinner {
    display: inline-block;
    width: 24px;
    height: 24px;
    border: 3px solid var(--sfaq-border);
    border-top-color: var(--sfaq-primary);
    border-radius: 50%;
    animation: sfaq-spin 0.6s linear infinite;
}

@keyframes sfaq-spin {
    to { transform: rotate(360deg); }
}

/* ── Empty State ────────────────────────── */
.sfaq-empty {
    text-align: center;
    color: var(--sfaq-text-muted);
    padding: 32px;
    font-style: italic;
}

/* ── Animation for items appearing ─────── */
@keyframes sfaq-fadein {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

.sfaq-item {
    animation: sfaq-fadein 0.2s ease both;
}

.sfaq-item:nth-child(1) { animation-delay: 0ms; }
.sfaq-item:nth-child(2) { animation-delay: 30ms; }
.sfaq-item:nth-child(3) { animation-delay: 60ms; }
.sfaq-item:nth-child(4) { animation-delay: 90ms; }
.sfaq-item:nth-child(5) { animation-delay: 120ms; }
.sfaq-item:nth-child(n+6) { animation-delay: 150ms; }

/* ── Responsive ─────────────────────────── */
@media (max-width: 600px) {
    .sfaq-question { font-size: 14px; padding: 14px 16px; }
    .sfaq-answer-inner { font-size: 14px; }
    .sfaq-tab { font-size: 13px; padding: 7px 14px; }
}