:root {
    --color-primary: #00a2b1;
    --color-primary-light: #28cad9;
    --color-primary-dark: #007a89;
    --color-primary-glow: rgba(0, 162, 177, 0.5);
    --transition-speed: 0.3s;
    --radius-md: 0.8rem;
    --radius-lg: 1.2rem;
    --shadow-sm: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

[data-theme="dark"] {
    --color-bg: #070707;
    --color-bg-secondary: #111111;
    --color-bg-tertiary: #1a1a1a;
    --color-border-primary: #2a2a2a;
    --color-text-primary: #f5f5f5;
    --color-text-secondary: #b8b8b8;
    --shadow-sm: 0 4px 12px rgba(0,0,0,0.28);
    --shadow-md: 0 12px 30px rgba(0,0,0,0.38);
    --color-success: #48bb78;
    --color-success-glow: rgba(72, 187, 120, 0.5);
    --color-warning: #facc15;
    --color-warning-glow: rgba(250, 204, 21, 0.5);
    --color-danger: #f87171;
    --color-danger-glow: rgba(248, 113, 113, 0.5);
    --btn-close-filter: invert(1);
    --rtp-text-color: #fff;
    --rtp-text-shadow: 0 1px 2px rgba(0,0,0,0.8), 0 0 10px currentColor;
    --btn-detail-text: #f5f5f5;
    --btn-detail-border: #2f2f2f;
    --btn-detail-bg: #191919;
    --btn-detail-hover-bg: #242424;
    --btn-detail-hover-border: #3a3a3a;
}

[data-theme="light"] {
    --color-bg: #f1f5f9;
    --color-bg-secondary: #ffffff;
    --color-bg-tertiary: #f8fafc;
    --color-border-primary: #e2e8f0;
    --color-text-primary: #1e293b;
    --color-text-secondary: #475569;
    --color-success: #10b981;
    --color-success-glow: rgba(16, 185, 129, 0.2);
    --color-warning: #fbbf24;
    --color-warning-glow: rgba(251, 191, 36, 0.2);
    --color-danger: #ef4444;
    --color-danger-glow: rgba(239, 68, 68, 0.2);
    --btn-close-filter: none;
    --rtp-text-color: #1e293b;
    --rtp-text-shadow: 0 1px 2px rgba(255,255,255,0.8);
    --btn-detail-text: var(--color-text-primary);
    --btn-detail-border: #cbd5e1;
    --btn-detail-bg: #f1f5f9;
    --btn-detail-hover-bg: #e2e8f0;
    --btn-detail-hover-border: #cbd5e1;
}

.form-control-search {
    background-color: var(--color-bg-tertiary);
    border-color: var(--color-border-primary);
    color: var(--color-text-primary);
}
.form-control-search:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 .25rem var(--color-primary-glow);
}

#seo-content a, #page-content a, .breadcrumb a, footer a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: bold;
    transition: color 0.2s ease;
}

#seo-content a:hover, #page-content a:hover, .breadcrumb a:hover, footer a:hover {
    color: var(--color-primary-light);
}

.not-found-content {
    text-align: center;
    padding: clamp(40px, 8vw, 72px) 15px;
}

.not-found-code {
    font-size: clamp(72px, 16vw, 112px);
    font-weight: 800;
    line-height: 1;
    margin: 0 0 20px;
    color: var(--color-primary);
    text-shadow: 0 0 28px var(--color-primary-glow);
}

.not-found-title {
    font-size: clamp(22px, 4vw, 30px);
    color: var(--color-primary);
    margin-bottom: 24px;
    font-weight: 800;
}

.not-found-text {
    max-width: 620px;
    margin: 0 auto 28px;
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.not-found-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    background: linear-gradient(90deg, var(--color-primary-dark), var(--color-primary), var(--color-primary-light));
    color: #fff !important;
    text-decoration: none;
    font-weight: 700;
    box-shadow: 0 8px 24px var(--color-primary-glow);
    transition: transform 0.2s ease, filter 0.2s ease, box-shadow 0.2s ease;
}

.not-found-action:hover {
    color: #fff !important;
    filter: brightness(1.08);
    transform: translateY(-2px);
    box-shadow: 0 12px 30px var(--color-primary-glow);
}

.glass-wrapper .text-muted {
    color: #6c757d !important;
}