/* ══════════════════════════════════════════════════════════════════
   PRODUCT RECOMMENDATION BLOCK - COMPLETE STYLESHEET
   Version: 28.0.0 (Ribbon Feature Completely Removed)
   ══════════════════════════════════════════════════════════════════ */

/* ──────────────────────────────────────
   1. BASE CARD & RESET
   ──────────────────────────────────────── */
.prb-card, .prb-card * {
    box-sizing: border-box;
}

.prb-card {
    position: relative;
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: 24px;
    margin: 24px 0;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    font-family: inherit;
    overflow: hidden !important;
    max-width: 100%;
}

.prb-card h3.prb-title, .prb-card h4 {
    margin: 0; padding: 0; border: none; background: none; font-family: inherit;
}
.prb-card ul, .prb-card ol { list-style: none; padding: 0; margin: 0; }

/* ───────────────────────────────────────
   2. LAYOUT (Body, Image, Content)
   ─────────────────────────────────────── */
.prb-body {
    display: flex;
    gap: 24px;
    align-items: flex-start;
    max-width: 100%;
}

.prb-image {
    flex: 0 0 auto;
    max-width: 250px;
    width: 100%;
}
.prb-image img {
    width: 100%; height: auto; border-radius: 8px; object-fit: contain; background: #f9fafb;
}

.prb-content {
    flex: 1;
    min-width: 0;
    max-width: 100%;
    overflow: hidden;
}

/* ────────────────────────────────────────
   3. URGENCY & BADGES
   ──────────────────────────────────────── */
.prb-urgency-badge {
    position: absolute;
    top: 12px; right: 12px;
    padding: 6px 12px; font-size: 11px; font-weight: 700; text-transform: uppercase;
    border-radius: 6px; box-shadow: 0 2px 8px rgba(0,0,0,0.1); z-index: 12;
}

.prb-micro-badge {
    font-size: 11px; padding: 3px 8px; border-radius: 4px; background: #f3f4f6; color: #4b5563; font-weight: 600;
}
.prb-badge-verified { background: #dcfce7; color: #166534; }

.prb-badge-editors {
    display: inline-flex; align-items: center; gap: 6px; padding: 5px 12px; border-radius: 50px;
    font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05); border: 1px solid rgba(255,255,255,0.2);
}

/* 10 Editor's Choice Styles */
.prb-editors-choice-classic-gold { background: linear-gradient(135deg, #fef3c7, #fde68a); color: #92400e; }
.prb-editors-choice-modern-blue { background: linear-gradient(135deg, #dbeafe, #bfdbfe); color: #1e40af; }
.prb-editors-choice-neon-green { background: linear-gradient(135deg, #dcfce7, #bbf7d0); color: #166534; }
.prb-editors-choice-minimalist-black { background: #1f2937; color: #ffffff; }
.prb-editors-choice-royal-purple { background: linear-gradient(135deg, #f3e8ff, #e9d5ff); color: #6b21a8; }
.prb-editors-choice-sunset-orange { background: linear-gradient(135deg, #ffedd5, #fed7aa); color: #9a3412; }
.prb-editors-choice-ocean-teal { background: linear-gradient(135deg, #ccfbf1, #99f6e4); color: #115e59; }
.prb-editors-choice-ruby-red { background: linear-gradient(135deg, #fee2e2, #fecaca); color: #991b1b; }
.prb-editors-choice-slate-gray { background: linear-gradient(135deg, #f1f5f9, #e2e8f0); color: #334155; }
.prb-editors-choice-premium-silver { background: linear-gradient(135deg, #f8fafc, #f1f5f9); color: #475569; border: 1px solid #cbd5e1; }

/* ────────────────────────────────────────
   4. ANNOUNCEMENT BAR (10 Styles)
   ──────────────────────────────────────── */
.prb-announcement-bar {
    position: relative;
    z-index: 15;
    margin-bottom: 20px;
    padding: 12px 16px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 44px;
    width: 100%;
}
.prb-ann-icon { font-size: 16px; flex-shrink: 0; }
.prb-ann-text { flex: 1; line-height: 1.4; }

.prb-ann-style-modern { background: #f8f9fa; border: 1px solid #e9ecef; color: #495057; }
.prb-ann-style-alert { background: #fff3cd; border-left: 4px solid #ffc107; color: #856404; }
.prb-ann-style-success { background: #d1e7dd; border-left: 4px solid #198754; color: #0f5132; }
.prb-ann-style-urgency { background: #f8d7da; border-left: 4px solid #dc3545; color: #842029; }
.prb-ann-style-premium { background: linear-gradient(90deg, #fff9c4, #fff); border: 1px solid #fbc02d; color: #f57f17; }
.prb-ann-style-tech { background: #e7f1ff; border-left: 4px solid #0d6efd; color: #084298; }
.prb-ann-style-dark { background: #212529; color: #f8f9fa; }
.prb-ann-style-glass { background: rgba(255,255,255,0.7); backdrop-filter: blur(10px); border: 1px solid rgba(255,255,255,0.3); color: #333; box-shadow: 0 4px 6px rgba(0,0,0,0.05); }
.prb-ann-style-retro { background: #fff; border: 2px dashed #333; color: #333; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; }
.prb-ann-style-gradient { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; box-shadow: 0 4px 15px rgba(118, 75, 162, 0.3); }

/* ────────────────────────────────────────
   5. TITLE, STARS & DESCRIPTION
   ──────────────────────────────────────── */
.prb-title-row { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; flex-wrap: wrap; }
.prb-title { flex: 1; line-height: 1.3; }
.prb-stars { color: #d1d5db; font-size: 18px; margin-bottom: 12px; letter-spacing: 2px; }
.prb-star.filled { color: #FBBF24; }
.prb-desc { color: #4b5563; font-size: 14px; line-height: 1.6; margin: 0 0 16px 0; }

/* ────────────────────────────────────────
   6. PROS & CONS
   ──────────────────────────────────────── */
.prb-pros-cons-container { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin: 20px 0; padding: 20px; background: #f9fafb; border-radius: 12px; border: 1px solid #e5e7eb; }
.prb-pros-column, .prb-cons-column { min-width: 0; }
.prb-pros-title, .prb-cons-title { font-size: 15px; font-weight: 700; margin: 0 0 12px 0; padding-bottom: 8px; border-bottom: 2px solid #e5e7eb; }
.prb-pros-title { color: #059669; } .prb-cons-title { color: #dc2626; }
.prb-pros-list, .prb-cons-list { list-style: none; padding: 0; margin: 0; }
.prb-pro-item, .prb-con-item { display: flex; align-items: flex-start; gap: 10px; padding: 8px 0; border-bottom: 1px solid #f3f4f6; font-size: 14px; line-height: 1.5; }
.prb-pro-item:last-child, .prb-con-item:last-child { border-bottom: none; }
.prb-pro-icon { color: #059669; font-weight: bold; font-size: 16px; flex-shrink: 0; width: 20px; text-align: center; }
.prb-con-icon { color: #dc2626; font-weight: bold; font-size: 16px; flex-shrink: 0; width: 20px; text-align: center; }
.prb-pro-text, .prb-con-text { color: #374151; }

/* ───────────────────────────────────────
   7. COUNTDOWN TIMER
   ─────────────────────────────────────── */
.prb-countdown { background: #fef3c7; border: 1px solid #fbbf24; border-radius: 8px; padding: 16px; margin: 20px 0; text-align: center; }
.prb-countdown-label { font-size: 14px; font-weight: 600; color: #92400e; margin-bottom: 12px; }
.prb-countdown-timer { display: flex; justify-content: center; gap: 16px; }
.prb-countdown-unit { display: flex; flex-direction: column; align-items: center; }
.prb-countdown-num { font-size: 24px; font-weight: 700; color: #92400e; font-family: 'Courier New', monospace; }
.prb-countdown-text { font-size: 11px; color: #a16207; text-transform: uppercase; margin-top: 4px; }

/* ────────────────────────────────────────
   8. COUPON CODE (10 Styles)
   ──────────────────────────────────────── */
.prb-coupon-wrapper { margin: 20px 0; padding: 20px; border-radius: 8px; position: relative; }
.prb-coupon-header { font-weight: bold; margin-bottom: 10px; font-size: 16px; }
.prb-coupon-code-display { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.prb-coupon-code { font-family: 'Courier New', monospace; font-size: 20px; font-weight: 700; padding: 10px 16px; border-radius: 6px; background: #fff; color: #065f46; border: 2px solid #a7f3d0; letter-spacing: 1px; flex: 1; text-align: center; }
.prb-coupon-copy-btn { background: #10b981; color: #fff; border: none; padding: 10px 16px; border-radius: 6px; font-weight: 600; cursor: pointer; }
.prb-coupon-expired { color: #ef4444; font-weight: 700; padding: 10px 16px; background: #fee2e2; border-radius: 6px; }
.prb-coupon-timer-section { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.prb-notify-btn { background: #3b82f6; color: #fff; border: none; padding: 8px 14px; border-radius: 6px; font-weight: 600; cursor: pointer; }

.prb-coupon-classic-dashed { background: #f0fdf4; border: 2px dashed #10b981; color: #065f46; }
.prb-coupon-modern-solid { background: #ffffff; border: 1px solid #e5e7eb; border-left: 5px solid #3b82f6; box-shadow: 0 2px 4px rgba(0,0,0,0.05); color: #1e3a8a; }
.prb-coupon-gradient-box { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: #ffffff; border: none; }
.prb-coupon-ticket-style { background: #fff; border: 1px dashed #cbd5e1; color: #475569; background-image: radial-gradient(circle at 0 50%, transparent 10px, #fff 11px), radial-gradient(circle at 100% 50%, transparent 10px, #fff 11px); }
.prb-coupon-minimalist-line { background: transparent; border: none; border-bottom: 2px solid #000; padding: 10px 0; border-radius: 0; color: #000; }
.prb-coupon-dark-mode { background: #1f2937; color: #f3f4f6; border: 1px solid #374151; }
.prb-coupon-neon-glow { background: #000; color: #0ff; border: 1px solid #0ff; box-shadow: 0 0 10px #0ff, inset 0 0 10px #0ff; }
.prb-coupon-heavy-rounded { background: #fef3c7; border: 4px solid #f59e0b; border-radius: 24px; color: #92400e; }
.prb-coupon-outline-only { background: transparent; border: 2px solid #ef4444; color: #ef4444; }
.prb-coupon-badge-compact { background: #e0e7ff; color: #3730a3; padding: 10px 20px; display: inline-block; border-radius: 50px; font-weight: bold; }

/* ────────────────────────────────────────
   9. BUTTONS (Fixed Containment)
   ──────────────────────────────────────── */
.prb-buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin: 20px 0;
    width: 100%;
    max-width: 100%;
    overflow: hidden;
}

.prb-btn {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box;
    appearance: none;
    -webkit-appearance: none;
}

.prb-btn:hover {
    background-color: var(--btn-hover-bg, #333333) !important;
    color: var(--btn-hover-text, #ffffff) !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    text-decoration: none;
}

.prb-price { font-size: 16px; font-weight: 700; flex-shrink: 0; }
.prb-store { font-size: 14px; font-weight: 500; flex-shrink: 0; }

.prb-btn-default { border-radius: 8px; }
.prb-btn-pill { border-radius: 50px; }
.prb-btn-square { border-radius: 0; }
.prb-btn-gradient { background: linear-gradient(135deg, var(--btn-bg, #000) 0%, #4A6CF7 100%) !important; border-radius: 8px; }
.prb-btn-outline { background: transparent !important; border: 2px solid var(--btn-bg, #000); color: var(--btn-bg, #000) !important; }
.prb-btn-outline:hover { background: var(--btn-bg, #000) !important; color: #fff !important; }
.prb-btn-shadow { box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15); }
.prb-btn-oos { opacity: 0.6; cursor: not-allowed; background: #9ca3af !important; }
.prb-btn-alternative { border: 2px solid #10b981; }
.prb-oos-badge, .prb-alt-badge { position: absolute; top: 50%; right: 10px; transform: translateY(-50%); font-size: 10px; padding: 2px 6px; border-radius: 4px; background: rgba(255,255,255,0.2); }

/* ────────────────────────────────────────
   10. EMAIL, FAQ, TERMS, STICKY
   ──────────────────────────────────────── */
.prb-email-capture { background: #f9fafb; border: 1px solid #e5e7eb; border-radius: 8px; padding: 20px; margin: 20px 0; }
.prb-email-title { font-size: 16px; font-weight: 700; color: #111827; margin: 0 0 12px 0; }
.prb-email-inputs { display: flex; gap: 12px; margin-bottom: 12px; }
.prb-email-input { flex: 1; padding: 10px 12px; border: 1px solid #d1d5db; border-radius: 6px; font-size: 14px; }
.prb-email-btn { width: 100%; padding: 12px; background: #4A6CF7; color: #fff; border: none; border-radius: 6px; font-size: 14px; font-weight: 600; cursor: pointer; }
.prb-email-privacy { font-size: 12px; color: #6b7280; margin: 8px 0 0 0; text-align: center; }

.prb-terms { font-size: 11px; color: #9ca3af; margin-top: 16px; line-height: 1.5; border-top: 1px solid #f3f4f6; padding-top: 12px; }

.prb-faq { margin: 20px 0; }
.prb-faq-title { font-size: 16px; font-weight: 700; color: #111827; margin: 0 0 12px 0; }
.prb-faq-item { border: 1px solid #e5e7eb; border-radius: 6px; margin-bottom: 8px; overflow: hidden; }
.prb-faq-question { padding: 12px 16px; background: #f9fafb; cursor: pointer; font-weight: 600; font-size: 14px; }
.prb-faq-answer { padding: 12px 16px; font-size: 14px; color: #4b5563; line-height: 1.6; }

.prb-sticky-mobile-btn { position: fixed; bottom: 0; left: 0; right: 0; padding: 12px; z-index: 1000; box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.1); text-align: center; display: none; }
.prb-sticky-link { display: block; color: #fff; text-decoration: none; font-weight: 600; font-size: 14px; }

/* ────────────────────────────────────────
   11. RESPONSIVE
   ──────────────────────────────────────── */
@media (max-width: 768px) {
    .prb-body { flex-direction: column; }
    .prb-image { max-width: 100%; margin-bottom: 16px; }
    .prb-pros-cons-container { grid-template-columns: 1fr; }
    .prb-btn { flex-direction: column; text-align: center; gap: 5px; }
    .prb-coupon-code-display { flex-direction: column; }
    .prb-coupon-timer-section { flex-direction: column; align-items: flex-start; }
    .prb-sticky-mobile-btn { display: block; }
}

/* ══════════════════════════════════════════════════════════════════
   TABLE OF CONTENTS STYLES
   ══════════════════════════════════════════════════════════════════ */
.prb-toc-container {
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    margin: 2rem 0;
    overflow: hidden;
    border-left: 4px solid #3b82f6; /* Matches your brand blue */
    transition: all 0.3s ease;
}

.prb-toc-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: #f8fafc;
    cursor: pointer;
    user-select: none;
    transition: background 0.3s ease;
}

.prb-toc-header:hover { background: #f1f5f9; }

.prb-toc-title {
    display: flex;
    align-items: center;
    font-size: 16px;
    font-weight: 700;
    color: #1e293b;
}

.prb-toc-chevron {
    color: #64748b;
    transition: transform 0.3s ease;
}

.prb-toc-container.is-expanded .prb-toc-chevron { transform: rotate(180deg); }

.prb-toc-list {
    list-style: none;
    padding: 0;
    margin: 0;
    border-top: 1px solid #e2e8f0;
    max-height: 1000px;
    overflow: hidden;
    transition: max-height 0.3s ease, opacity 0.3s ease;
}

.prb-toc-container.is-collapsed .prb-toc-list {
    max-height: 0;
    opacity: 0;
    border-top: none;
}

.prb-toc-link {
    display: block;
    padding: 12px 20px;
    color: #475569;
    text-decoration: none;
    font-size: 15px;
    line-height: 1.5;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
}

.prb-toc-link:hover {
    background: #f8fafc;
    color: #3b82f6;
    border-left-color: #3b82f6;
    padding-left: 24px;
}

.prb-toc-link.active {
    background: #eff6ff;
    color: #2563eb;
    font-weight: 600;
    border-left-color: #2563eb;
}

.prb-toc-indent .prb-toc-link { padding-left: 40px; font-size: 14px; }

/* Mobile Responsive */
@media (max-width: 768px) {
    .prb-toc-container { margin: 1.5rem 0; border-radius: 8px; }
    .prb-toc-header { padding: 14px 16px; }
    .prb-toc-link { padding: 10px 16px; font-size: 14px; }
}


/* ══════════════════════════════════════════════════════════════════
   TABLE OF CONTENTS - 20 STYLES & CUSTOMIZATION
   ══════════════════════════════════════════════════════════════════ */

.prb-toc-container {
    --prb-toc-frame-color: #3b82f6;
    --prb-toc-font: inherit;
    background: #ffffff;
    border-radius: 12px;
    margin: 2rem 0;
    overflow: hidden;
    font-family: var(--prb-toc-font);
    transition: all 0.3s ease;
}

.prb-toc-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: #f8fafc;
    cursor: pointer;
    user-select: none;
    transition: background 0.3s ease;
}

.prb-toc-header:hover {
    background: #f1f5f9;
}

.prb-toc-title {
    display: flex;
    align-items: center;
    font-size: 16px;
    font-weight: 700;
    color: #1e293b;
}

.prb-toc-chevron {
    color: #64748b;
    transition: transform 0.3s ease;
}

.prb-toc-container.is-expanded .prb-toc-chevron {
    transform: rotate(180deg);
}

.prb-toc-list {
    list-style: none;
    padding: 0;
    margin: 0;
    border-top: 1px solid #e2e8f0;
    max-height: 1000px;
    overflow: hidden;
    transition: max-height 0.3s ease, opacity 0.3s ease;
}

.prb-toc-container.is-collapsed .prb-toc-list {
    max-height: 0;
    opacity: 0;
    border-top: none;
}

.prb-toc-item {
    margin: 0;
}

.prb-toc-link {
    display: block;
    padding: 12px 20px;
    color: #475569;
    text-decoration: none;
    font-size: 15px;
    line-height: 1.5;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
}

.prb-toc-link:hover {
    background: #f8fafc;
    color: var(--prb-toc-frame-color);
    border-left-color: var(--prb-toc-frame-color);
    padding-left: 24px;
}

.prb-toc-link.active {
    background: #eff6ff;
    color: var(--prb-toc-frame-color);
    font-weight: 600;
    border-left-color: var(--prb-toc-frame-color);
}

.prb-toc-level-3 .prb-toc-link {
    padding-left: 40px;
    font-size: 14px;
}

.prb-toc-level-4 .prb-toc-link {
    padding-left: 60px;
    font-size: 13px;
}

/* Separator Styles */
.prb-toc-separator-solid .prb-toc-item {
    border-bottom: 1px solid #e2e8f0;
}

.prb-toc-separator-dashed .prb-toc-item {
    border-bottom: 1px dashed #e2e8f0;
}

.prb-toc-separator-dotted .prb-toc-item {
    border-bottom: 1px dotted #e2e8f0;
}

.prb-toc-separator-double .prb-toc-item {
    border-bottom: 2px double #e2e8f0;
}

.prb-toc-separator-gradient .prb-toc-item {
    border-bottom: 1px solid transparent;
    background: linear-gradient(to right, var(--prb-toc-frame-color), transparent) bottom no-repeat;
    background-size: 100% 1px;
}

.prb-toc-separator-none .prb-toc-item {
    border-bottom: none;
}

/* 20 TOC Design Styles */

/* 1. Modern (Default) */
.prb-toc-style-modern {
    border-left: 4px solid var(--prb-toc-frame-color);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

/* 2. Minimal */
.prb-toc-style-minimal {
    border: 1px solid #e5e7eb;
    box-shadow: none;
}

.prb-toc-style-minimal .prb-toc-header {
    background: transparent;
}

/* 3. Classic */
.prb-toc-style-classic {
    border: 2px solid var(--prb-toc-frame-color);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* 4. Boxed */
.prb-toc-style-boxed {
    border: 3px solid var(--prb-toc-frame-color);
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
    border-radius: 8px;
}

/* 5. Sidebar */
.prb-toc-style-sidebar {
    border-left: 5px solid var(--prb-toc-frame-color);
    box-shadow: 4px 0 8px rgba(0,0,0,0.1);
}

/* 6. Floating */
.prb-toc-style-floating {
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
    border-radius: 16px;
    border: none;
}

/* 7. Gradient */
.prb-toc-style-gradient {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-left: 4px solid var(--prb-toc-frame-color);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

/* 8. Glassmorphism */
.prb-toc-style-glass {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.3);
    box-shadow: 0 8px 32px rgba(0,0,0,0.1);
}

/* 9. Neumorphism */
.prb-toc-style-neumorphism {
    background: #f0f4f8;
    box-shadow: 8px 8px 16px #d1d9e6, -8px -8px 16px #ffffff;
    border: none;
    border-radius: 12px;
}

/* 10. Outline */
.prb-toc-style-outline {
    border: 2px dashed var(--prb-toc-frame-color);
    box-shadow: none;
}

/* 11. Bordered */
.prb-toc-style-bordered {
    border: 4px solid var(--prb-toc-frame-color);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

/* 12. Compact */
.prb-toc-style-compact {
    border-left: 3px solid var(--prb-toc-frame-color);
    padding: 12px;
}

.prb-toc-style-compact .prb-toc-link {
    padding: 8px 12px;
    font-size: 14px;
}

/* 13. Expanded */
.prb-toc-style-expanded {
    border-left: 4px solid var(--prb-toc-frame-color);
    box-shadow: 0 6px 12px rgba(0,0,0,0.1);
}

.prb-toc-style-expanded .prb-toc-link {
    padding: 16px 20px;
}

/* 14. Accordion */
.prb-toc-style-accordion {
    border: 1px solid #e5e7eb;
}

.prb-toc-style-accordion .prb-toc-item {
    border-bottom: 1px solid #e5e7eb;
}

/* 15. Tabs */
.prb-toc-style-tabs .prb-toc-header {
    background: var(--prb-toc-frame-color);
    color: white;
}

.prb-toc-style-tabs .prb-toc-title {
    color: white;
}

/* 16. Pill */
.prb-toc-style-pill {
    border-radius: 50px;
    border: 2px solid var(--prb-toc-frame-color);
}

.prb-toc-style-pill .prb-toc-link {
    border-radius: 25px;
    margin: 4px 12px;
}

/* 17. Chip */
.prb-toc-style-chip .prb-toc-link {
    display: inline-block;
    background: #f3f4f6;
    border-radius: 16px;
    padding: 8px 16px;
    margin: 4px 8px;
}

/* 18. Card */
.prb-toc-style-card {
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.prb-toc-style-card .prb-toc-item {
    background: #f9fafb;
    margin: 4px;
    border-radius: 6px;
}

/* 19. List */
.prb-toc-style-list {
    border-left: 4px solid var(--prb-toc-frame-color);
}

.prb-toc-style-list .prb-toc-link:before {
    content: "•";
    color: var(--prb-toc-frame-color);
    font-weight: bold;
    margin-right: 8px;
}

/* 20. Tree View */
.prb-toc-style-tree .prb-toc-level-3 .prb-toc-link:before {
    content: "├─ ";
    color: var(--prb-toc-frame-color);
}

.prb-toc-style-tree .prb-toc-level-4 .prb-toc-link:before {
    content: "│  ├─ ";
    color: var(--prb-toc-frame-color);
}

/* Responsive */
@media (max-width: 768px) {
    .prb-toc-container {
        margin: 1.5rem 0;
        border-radius: 8px;
    }
    
    .prb-toc-header {
        padding: 14px 16px;
    }
    
    .prb-toc-link {
        padding: 10px 16px;
        font-size: 14px;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .prb-toc-container {
        background: #1e293b;
    }
    
    .prb-toc-header {
        background: #0f172a;
    }
    
    .prb-toc-title {
        color: #f1f5f9;
    }
    
    .prb-toc-list {
        border-top-color: #334155;
    }
    
    .prb-toc-link {
        color: #cbd5e1;
    }
    
    .prb-toc-link:hover {
        background: #334155;
        color: var(--prb-toc-frame-color);
    }
    
    .prb-toc-link.active {
        background: #1e3a8a;
        color: var(--prb-toc-frame-color);
    }
}

/* Enhanced TOC Styles with CSS Variables */
.prb-toc-container {
    --prb-toc-primary: #3b82f6;
    --prb-toc-hover: #2563eb;
    --prb-toc-active: #1e40af;
    --prb-toc-separator: #e2e8f0;
    background: #ffffff;
    border-radius: 12px;
    margin: 2rem 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.prb-toc-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: #f8fafc;
    cursor: pointer;
    user-select: none;
    transition: background 0.3s ease;
}

.prb-toc-header:hover {
    background: #f1f5f9;
}

.prb-toc-title {
    display: flex;
    align-items: center;
    font-size: 16px;
    font-weight: 700;
    color: #1e293b;
}

.prb-toc-chevron {
    color: #64748b;
    transition: transform 0.3s ease;
}

.prb-toc-container.is-expanded .prb-toc-chevron {
    transform: rotate(180deg);
}

.prb-toc-list {
    list-style: none;
    padding: 0;
    margin: 0;
    border-top: 1px solid var(--prb-toc-separator);
    max-height: 1000px;
    overflow: hidden;
    transition: max-height 0.3s ease, opacity 0.3s ease;
}

.prb-toc-container.is-collapsed .prb-toc-list {
    max-height: 0;
    opacity: 0;
    border-top: none;
}

.prb-toc-item {
    margin: 0;
}

.prb-toc-link {
    display: block;
    padding: 12px 20px;
    color: #475569;
    text-decoration: none;
    font-size: 15px;
    line-height: 1.5;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
}

.prb-toc-link:hover {
    background: #f8fafc;
    color: var(--prb-toc-hover);
    border-left-color: var(--prb-toc-primary);
    padding-left: 24px;
}

.prb-toc-link.active {
    background: #eff6ff;
    color: var(--prb-toc-active);
    font-weight: 600;
    border-left-color: var(--prb-toc-primary);
}

.prb-toc-indent .prb-toc-link {
    padding-left: 40px;
    font-size: 14px;
}

/* Separator Styles */
.prb-toc-separator-solid .prb-toc-item {
    border-bottom: 1px solid var(--prb-toc-separator);
}

.prb-toc-separator-dashed .prb-toc-item {
    border-bottom: 1px dashed var(--prb-toc-separator);
}

.prb-toc-separator-dotted .prb-toc-item {
    border-bottom: 1px dotted var(--prb-toc-separator);
}

.prb-toc-separator-double .prb-toc-item {
    border-bottom: 2px double var(--prb-toc-separator);
}

.prb-toc-separator-gradient .prb-toc-item {
    border-bottom: 1px solid transparent;
    background: linear-gradient(to right, var(--prb-toc-primary), transparent) bottom no-repeat;
    background-size: 100% 1px;
}

.prb-toc-separator-none .prb-toc-item {
    border-bottom: none;
}

/* 22 Design Styles */
.prb-toc-style-modern {
    border-left: 4px solid var(--prb-toc-primary);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.prb-toc-style-minimal {
    border: 1px solid #e5e7eb;
    box-shadow: none;
}

.prb-toc-style-classic {
    border: 2px solid var(--prb-toc-primary);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.prb-toc-style-boxed {
    border: 3px solid var(--prb-toc-primary);
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
}

.prb-toc-style-sidebar {
    border-left: 5px solid var(--prb-toc-primary);
    box-shadow: 4px 0 8px rgba(0,0,0,0.1);
}

.prb-toc-style-floating {
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
    border-radius: 16px;
    border: none;
}

.prb-toc-style-gradient {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-left: 4px solid var(--prb-toc-primary);
}

.prb-toc-style-glass {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.3);
    box-shadow: 0 8px 32px rgba(0,0,0,0.1);
}

.prb-toc-style-neumorphism {
    background: #f0f4f8;
    box-shadow: 8px 8px 16px #d1d9e6, -8px -8px 16px #ffffff;
    border: none;
}

.prb-toc-style-outline {
    border: 2px dashed var(--prb-toc-primary);
    box-shadow: none;
}

.prb-toc-style-bordered {
    border: 4px solid var(--prb-toc-primary);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

.prb-toc-style-compact {
    padding: 12px;
}

.prb-toc-style-compact .prb-toc-link {
    padding: 8px 12px;
    font-size: 14px;
}

.prb-toc-style-expanded .prb-toc-link {
    padding: 16px 20px;
}

.prb-toc-style-accordion {
    border: 1px solid #e5e7eb;
}

.prb-toc-style-tabs .prb-toc-header {
    background: var(--prb-toc-primary);
    color: white;
}

.prb-toc-style-tabs .prb-toc-title {
    color: white;
}

.prb-toc-style-pill {
    border-radius: 50px;
    border: 2px solid var(--prb-toc-primary);
}

.prb-toc-style-chip .prb-toc-link {
    display: inline-block;
    background: #f3f4f6;
    border-radius: 16px;
    padding: 8px 16px;
    margin: 4px 8px;
}

.prb-toc-style-card {
    border: 1px solid #e5e7eb;
}

.prb-toc-style-card .prb-toc-item {
    background: #f9fafb;
    margin: 4px;
    border-radius: 6px;
}

.prb-toc-style-list .prb-toc-link:before {
    content: "•";
    color: var(--prb-toc-primary);
    font-weight: bold;
    margin-right: 8px;
}

.prb-toc-style-tree .prb-toc-indent .prb-toc-link:before {
    content: "├─ ";
    color: var(--prb-toc-primary);
}

.prb-toc-style-elegant {
    border-left: 3px solid var(--prb-toc-primary);
    background: linear-gradient(to right, #fafafa, #ffffff);
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.prb-toc-style-professional {
    border: 1px solid #d1d5db;
    background: #ffffff;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

/* Responsive */
@media (max-width: 768px) {
    .prb-toc-container {
        margin: 1.5rem 0;
        border-radius: 8px;
    }
    
    .prb-toc-header {
        padding: 14px 16px;
    }
    
    .prb-toc-link {
        padding: 10px 16px;
        font-size: 14px;
    }
}