/* Knowledge Base Index Styles */

.kb-hero {
    background:
        radial-gradient(circle at 85% 20%, rgba(244, 125, 23, 0.2), transparent 45%),
        radial-gradient(circle at 15% 70%, rgba(255, 255, 255, 0.12), transparent 50%),
        linear-gradient(145deg, #1a2455 0%, #173976 45%, var(--brand-blue) 100%);
    color: white;
    padding: var(--space-14) var(--space-5) var(--space-10);
    position: relative;
    overflow: hidden;
}

.kb-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
            -45deg,
            rgba(255, 255, 255, 0.04) 0,
            rgba(255, 255, 255, 0.04) 1px,
            transparent 1px,
            transparent 18px
    );
    opacity: 0.35;
}

.kb-hero-content {
    position: relative;
    z-index: 1;
    max-width: 760px;
    margin: 0 auto;
    text-align: center;
}

.kb-hero-eyebrow {
    display: inline-block;
    margin-bottom: var(--space-3);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.16);
    border: 1px solid rgba(255, 255, 255, 0.2);
    font-size: var(--text-xs);
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.kb-hero h1 {
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: var(--font-weight-extrabold);
    line-height: 1.1;
    margin-bottom: var(--space-4);
    letter-spacing: -0.03em;
}

.kb-hero p {
    max-width: 680px;
    margin: 0 auto var(--space-7);
    font-size: var(--text-lg);
    line-height: var(--leading-relaxed);
    color: rgba(255, 255, 255, 0.92);
}

.kb-search-form {
    max-width: 620px;
    margin: 0 auto;
}

.kb-search-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.kb-search-icon {
    position: absolute;
    left: var(--space-4);
    color: rgba(255, 255, 255, 0.78);
    pointer-events: none;
}

.kb-search-input {
    width: 100%;
    min-height: 56px;
    padding: var(--space-4) var(--space-4) var(--space-4) var(--space-12);
    border: 1px solid rgba(255, 255, 255, 0.34);
    border-radius: var(--radius-2xl);
    background: rgba(255, 255, 255, 0.18);
    color: white;
    font-size: var(--text-base);
    font-family: var(--font-primary);
    box-shadow: 0 10px 28px rgba(10, 20, 50, 0.18);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: border-color var(--duration-200) var(--ease-out), background var(--duration-200) var(--ease-out);
}

.kb-search-input::placeholder {
    color: rgba(255, 255, 255, 0.8);
}

.kb-search-input:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.24);
    border-color: rgba(255, 255, 255, 0.65);
}

.kb-hero-stats {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-5);
    margin-top: var(--space-5);
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.9);
}

.kb-hero-stats strong {
    color: white;
    margin-right: var(--space-1);
}

.kb-content {
    background: linear-gradient(180deg, #f3f7fc 0%, var(--brand-off-white) 22%, var(--brand-off-white) 100%);
    padding: var(--space-8) var(--space-5) var(--space-16);
}

.kb-container {
    max-width: 1140px;
    margin: 0 auto;
}

.kb-toolbar {
    background: var(--kb-surface);
    border: 1px solid rgba(17, 24, 39, 0.08);
    border-radius: var(--radius-2xl);
    padding: var(--space-6);
    box-shadow: 0 14px 35px rgba(33, 44, 94, 0.08);
    margin-bottom: var(--space-7);
}

.kb-toolbar-head h2 {
    margin: 0 0 var(--space-2);
    font-size: clamp(1.2rem, 2vw, 1.55rem);
    line-height: 1.2;
    color: var(--brand-dark-blue);
}

.kb-toolbar-head p {
    margin: 0 0 var(--space-5);
    color: var(--gray-600);
    font-size: var(--text-base);
}

.kb-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.kb-tag-pill.active {
    color: white;
    border-color: var(--brand-blue);
    background: linear-gradient(120deg, var(--brand-blue) 0%, #2168b4 100%);
}

.kb-search-results-info {
    margin: 0 0 var(--space-6);
    color: var(--gray-600);
    font-size: var(--text-base);
}

.kb-clear-search {
    color: var(--brand-orange);
    text-decoration: none;
    margin-left: var(--space-2);
    font-weight: var(--font-weight-semibold);
}

.kb-clear-search:hover {
    text-decoration: underline;
}

.kb-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-5);
}

.kb-card {
    background: var(--kb-surface);
    border-radius: var(--radius-xl);
    border: 1px solid #e3e9f2;
    box-shadow: 0 8px 24px rgba(16, 24, 39, 0.05);
    text-decoration: none;
    padding: var(--space-5);
    display: flex;
    flex-direction: column;
    min-height: 295px;
    transition: transform var(--duration-200) var(--ease-out), box-shadow var(--duration-200) var(--ease-out), border-color var(--duration-200) var(--ease-out);
}

.kb-card:hover {
    transform: translateY(-4px);
    border-color: rgba(0, 86, 161, 0.35);
    box-shadow: 0 14px 32px rgba(17, 24, 39, 0.11);
}

.kb-card-title {
    font-size: 1.28rem;
    font-weight: var(--font-weight-bold);
    line-height: 1.3;
    margin-bottom: var(--space-3);
    color: var(--brand-dark-blue);
}

.kb-card-description {
    font-size: var(--text-base);
    line-height: var(--leading-relaxed);
    color: #42556e;
    margin-bottom: var(--space-4);
    display: -webkit-box;
    -webkit-line-clamp: 5;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}

.kb-card-meta {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.kb-card-signals {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-1-5);
}

.kb-card-signal {
    display: inline-flex;
    align-items: center;
    padding: var(--space-0-5) var(--space-2);
    border-radius: var(--radius-md);
    font-size: 0.68rem;
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.02em;
    line-height: 1.4;
}

.kb-card-signal-exploit.is-exploitable {
    background: rgba(220, 38, 38, 0.1);
    color: #dc2626;
    border: 1px solid rgba(220, 38, 38, 0.2);
}

.kb-card-signal-exploit.not-exploitable {
    background: rgba(22, 163, 74, 0.1);
    color: #15803d;
    border: 1px solid rgba(22, 163, 74, 0.2);
}

.kb-card-signal-effort {
    background: rgba(33, 44, 94, 0.08);
    color: var(--brand-dark-blue);
    border: 1px solid rgba(33, 44, 94, 0.15);
}

.kb-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-1-5);
}

.kb-card-tag {
    padding: var(--space-1) var(--space-2-5);
    border-radius: var(--radius-md);
    font-size: 0.72rem;
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.02em;
    text-transform: lowercase;
    background: rgba(0, 86, 161, 0.09);
    color: #0b5192;
}

.kb-card-tag-more {
    background: rgba(33, 44, 94, 0.08);
    color: var(--brand-dark-blue);
}

.kb-card-info {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: #66768b;
}

.kb-card-dot {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: #95a3b8;
}

.kb-no-results {
    text-align: center;
    padding: var(--space-16) var(--space-5);
    color: var(--gray-600);
}

.kb-no-results p {
    font-size: var(--text-lg);
    margin-bottom: var(--space-4);
}

.kb-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-2);
    margin-top: var(--space-10);
}

.kb-page-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 var(--space-3);
    border-radius: var(--radius-lg);
    font-size: var(--text-sm);
    font-weight: var(--font-weight-medium);
    color: var(--brand-dark-blue);
    background: var(--kb-surface);
    border: 1px solid #dce4f0;
    text-decoration: none;
    transition: all var(--duration-200) var(--ease-out);
}

.kb-page-btn:hover:not(.disabled):not(.active) {
    border-color: var(--brand-blue);
    color: var(--brand-blue);
}

.kb-page-btn.active {
    background: var(--brand-blue);
    border-color: var(--brand-blue);
    color: white;
}

.kb-page-btn.disabled {
    opacity: 0.4;
    cursor: default;
}

html[data-bs-theme="dark"] .kb-content {
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-primary) 100%);
}

html[data-bs-theme="dark"] .kb-toolbar {
    background: #151b29;
    border-color: #2a3448;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
}

html[data-bs-theme="dark"] .kb-toolbar-head h2 {
    color: var(--text-primary);
}

html[data-bs-theme="dark"] .kb-toolbar-head p,
html[data-bs-theme="dark"] .kb-search-results-info,
html[data-bs-theme="dark"] .kb-no-results {
    color: var(--text-secondary);
}

html[data-bs-theme="dark"] .kb-search-input {
    border-color: rgba(255, 255, 255, 0.45);
}

html[data-bs-theme="dark"] .kb-search-input:focus {
    border-color: rgba(255, 255, 255, 0.75);
}

html[data-bs-theme="dark"] .kb-tag-pill.active {
    background: linear-gradient(120deg, #1f6cb6 0%, #2f78c4 100%);
    border-color: #2f78c4;
}

html[data-bs-theme="dark"] .kb-card {
    background: #151d2c;
    border-color: #2d3b52;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.32);
}

html[data-bs-theme="dark"] .kb-card:hover {
    box-shadow: 0 14px 32px rgba(0, 0, 0, 0.45);
    border-color: #3d85ce;
}

html[data-bs-theme="dark"] .kb-card-title {
    color: var(--text-primary);
}

html[data-bs-theme="dark"] .kb-card-description {
    color: var(--text-secondary);
}

html[data-bs-theme="dark"] .kb-card-tag {
    background: rgba(96, 165, 250, 0.14);
    color: var(--brand-blue-light);
}

html[data-bs-theme="dark"] .kb-card-signal-exploit.is-exploitable {
    background: rgba(248, 113, 113, 0.15);
    color: #fca5a5;
    border-color: rgba(248, 113, 113, 0.28);
}

html[data-bs-theme="dark"] .kb-card-signal-exploit.not-exploitable {
    background: rgba(74, 222, 128, 0.14);
    color: #86efac;
    border-color: rgba(74, 222, 128, 0.25);
}

html[data-bs-theme="dark"] .kb-card-signal-effort {
    background: rgba(209, 213, 219, 0.1);
    color: var(--text-tertiary);
    border-color: rgba(209, 213, 219, 0.18);
}

html[data-bs-theme="dark"] .kb-card-tag-more {
    background: rgba(209, 213, 219, 0.1);
    color: var(--text-tertiary);
}

html[data-bs-theme="dark"] .kb-card-info {
    color: #94a3b8;
}

html[data-bs-theme="dark"] .kb-card-dot {
    background: #64748b;
}

html[data-bs-theme="dark"] .kb-page-btn {
    background: #1b2233;
    border-color: #2d3b52;
    color: var(--text-primary);
}

html[data-bs-theme="dark"] .kb-page-btn:hover:not(.disabled):not(.active) {
    border-color: var(--brand-blue);
    color: var(--brand-blue-light);
}

html[data-bs-theme="dark"] .kb-page-btn.active {
    background: var(--brand-blue);
    border-color: var(--brand-blue);
    color: white;
}

@media (max-width: 640px) {
    .kb-hero {
        padding: var(--space-10) var(--space-4) var(--space-8);
    }

    .kb-hero h1 {
        font-size: clamp(1.75rem, 8vw, 2.2rem);
    }

    .kb-hero p {
        font-size: var(--text-base);
    }

    .kb-hero-stats {
        flex-direction: column;
        gap: var(--space-2);
        margin-top: var(--space-4);
    }

    .kb-content {
        padding: var(--space-6) var(--space-4) var(--space-12);
    }

    .kb-toolbar {
        padding: var(--space-4);
        margin-bottom: var(--space-5);
    }

    .kb-toolbar-head p {
        margin-bottom: var(--space-4);
        font-size: var(--text-sm);
    }

    .kb-search-input {
        min-height: 50px;
    }

    .kb-grid {
        grid-template-columns: 1fr;
    }

    .kb-card {
        padding: var(--space-5);
    }

    .kb-pagination {
        flex-wrap: wrap;
    }
}