/* ================================
 * MODERN CSS FRAMEWORK - Sentry OSINT
 * A sleek, modern design system
 * ================================ */

/* CSS Variables - Design Tokens */
:root {
    /* Color Palette - Refined Dark Theme */
    --color-bg-primary: #0a0f1c;
    --color-bg-secondary: #111827;
    --color-bg-tertiary: #1e293b;
    --color-bg-elevated: #1e293b;
    --color-bg-surface: rgba(30, 41, 59, 0.6);
    --color-bg-glass: rgba(17, 24, 39, 0.8);

    /* Text Colors */
    --color-text-primary: #f8fafc;
    --color-text-secondary: #cbd5e1;
    --color-text-tertiary: #94a3b8;
    --color-text-muted: #64748b;

    /* Brand Colors */
    --color-brand-primary: #3b82f6;
    --color-brand-primary-hover: #2563eb;
    --color-brand-primary-light: rgba(59, 130, 246, 0.15);
    --color-brand-secondary: #8b5cf6;
    --color-brand-secondary-light: rgba(139, 92, 246, 0.15);

    /* Accent Colors */
    --color-accent-cyan: #06b6d4;
    --color-accent-emerald: #10b981;
    --color-accent-amber: #f59e0b;
    --color-accent-rose: #f43f5e;
    --color-accent-violet: #8b5cf6;

    /* Status Colors */
    --color-success: #22c55e;
    --color-success-bg: rgba(34, 197, 94, 0.1);
    --color-warning: #f59e0b;
    --color-warning-bg: rgba(245, 158, 11, 0.1);
    --color-error: #ef4444;
    --color-error-bg: rgba(239, 68, 68, 0.1);
    --color-info: #3b82f6;
    --color-info-bg: rgba(59, 130, 246, 0.1);

    /* Border Colors */
    --color-border: rgba(71, 85, 105, 0.3);
    --color-border-light: rgba(71, 85, 105, 0.15);
    --color-border-focus: var(--color-brand-primary);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    --gradient-secondary: linear-gradient(135deg, #64748b 0%, #475569 100%);
    --gradient-success: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
    --gradient-danger: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    --gradient-warning: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    --gradient-purple: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
    --gradient-cyan: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);
    --gradient-mesh:
        radial-gradient(at 40% 20%, rgba(59, 130, 246, 0.08) 0px, transparent 50%),
        radial-gradient(at 80% 0%, rgba(16, 185, 129, 0.08) 0px, transparent 50%),
        radial-gradient(at 0% 50%, rgba(139, 92, 246, 0.08) 0px, transparent 50%),
        radial-gradient(at 80% 80%, rgba(6, 182, 212, 0.05) 0px, transparent 50%);

    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 24px 48px rgba(0, 0, 0, 0.6);
    --shadow-glow-blue: 0 0 20px rgba(59, 130, 246, 0.3);
    --shadow-glow-cyan: 0 0 20px rgba(6, 182, 212, 0.3);
    --shadow-glow-emerald: 0 0 20px rgba(16, 185, 129, 0.3);

    /* Blur Effects */
    --blur-sm: 8px;
    --blur-md: 16px;
    --blur-lg: 24px;

    /* Spacing Scale */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-2xl: 32px;
    --radius-full: 9999px;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, Monaco, monospace;

    /* Font Sizes */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;

    /* Font Weights */
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;

    /* Line Heights */
    --leading-tight: 1.25;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
    --transition-smooth: 400ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Z-index Scale */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-modal: 300;
    --z-tooltip: 400;
}

/* ================================
 * BASE STYLES
 * ================================ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg-primary);
    background-image: var(--gradient-mesh);
    background-attachment: fixed;
    min-height: 100vh;
    color: var(--color-text-primary);
    line-height: var(--leading-normal);
    font-size: var(--text-base);
}

/* ================================
 * TYPOGRAPHY
 * ================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-semibold);
    line-height: var(--leading-tight);
    color: var(--color-text-primary);
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

p {
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
}

a {
    color: var(--color-brand-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-brand-primary-hover);
}

/* ================================
 * LAYOUT COMPONENTS
 * ================================ */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.container-sm { max-width: 640px; }
.container-md { max-width: 768px; }
.container-lg { max-width: 1024px; }
.container-xl { max-width: 1280px; }

/* ================================
 * GLASS CARD COMPONENT
 * ================================ */
.glass-card {
    background: var(--color-bg-glass);
    backdrop-filter: blur(var(--blur-md));
    -webkit-backdrop-filter: blur(var(--blur-md));
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.1) 50%,
        transparent 100%);
}

.glass-card-hover {
    transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
}

.glass-card-hover:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl), var(--shadow-glow-blue);
}

/* ================================
 * MODERN HEADER
 * ================================ */
.modern-header {
    background: rgba(10, 15, 28, 0.9);
    backdrop-filter: blur(var(--blur-lg));
    -webkit-backdrop-filter: blur(var(--blur-lg));
    border-bottom: 1px solid var(--color-border-light);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
}

.header-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-5) 0;
    gap: var(--space-4);
}

.header-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.header-logo img {
    height: 48px;
    width: auto;
    filter: brightness(1.05);
    transition: all var(--transition-base);
}

.header-logo:hover img {
    filter: brightness(1.15);
    transform: scale(1.02);
}

.header-title {
    text-align: center;
}

.header-title h1 {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    background: linear-gradient(135deg, var(--color-text-primary), var(--color-text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-subtitle {
    font-size: var(--text-sm);
    color: var(--color-text-tertiary);
    margin-top: var(--space-1);
}

/* ================================
 * MODERN NAVIGATION
 * ================================ */
.nav-modern {
    background: rgba(17, 24, 39, 0.95);
    backdrop-filter: blur(var(--blur-lg));
    border-bottom: 1px solid var(--color-border-light);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: var(--space-6);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.nav-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    color: var(--color-text-tertiary);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    position: relative;
}

.nav-link:hover {
    color: var(--color-text-primary);
    background: var(--color-brand-primary-light);
}

.nav-link.active {
    color: var(--color-brand-primary);
    background: var(--color-brand-primary-light);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 2px;
    background: var(--color-brand-primary);
    border-radius: var(--radius-full);
}

.nav-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    height: 18px;
    padding: 0 var(--space-1);
    background: var(--color-error);
    color: white;
    font-size: 10px;
    font-weight: var(--font-bold);
    border-radius: var(--radius-full);
    margin-left: var(--space-1);
}

/* ================================
 * BUTTON COMPONENTS
 * ================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-smooth);
    text-decoration: none;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.45);
}

.btn-secondary {
    background: var(--gradient-secondary);
    color: white;
    box-shadow: 0 4px 14px rgba(100, 116, 139, 0.35);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(100, 116, 139, 0.45);
}

.btn-success {
    background: var(--gradient-success);
    color: white;
    box-shadow: 0 4px 14px rgba(34, 197, 94, 0.35);
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(34, 197, 94, 0.45);
}

.btn-danger {
    background: var(--gradient-danger);
    color: white;
    box-shadow: 0 4px 14px rgba(239, 68, 68, 0.35);
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(239, 68, 68, 0.45);
}

.btn-warning {
    background: var(--gradient-warning);
    color: white;
    box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
}

.btn-warning:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(245, 158, 11, 0.45);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
}

.btn-ghost:hover {
    background: var(--color-bg-surface);
    color: var(--color-text-primary);
    border-color: var(--color-border-focus);
}

.btn-outline {
    background: transparent;
    color: var(--color-brand-primary);
    border: 2px solid var(--color-brand-primary);
}

.btn-outline:hover {
    background: var(--color-brand-primary);
    color: white;
}

.btn-sm {
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-xs);
}

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-base);
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: var(--radius-md);
}

.btn-disabled,
.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* ================================
 * FORM COMPONENTS
 * ================================ */
.form-group {
    margin-bottom: var(--space-5);
}

.form-label {
    display: block;
    margin-bottom: var(--space-2);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-text-primary);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-sm);
    font-family: inherit;
    color: var(--color-text-primary);
    background: rgba(30, 41, 59, 0.5);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-brand-primary);
    box-shadow: 0 0 0 3px var(--color-brand-primary-light);
    background: rgba(30, 41, 59, 0.8);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--color-text-muted);
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%2394a3b8' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
    background-position: right var(--space-3) center;
    background-repeat: no-repeat;
    background-size: 1.5em;
    padding-right: var(--space-10);
}

.form-checkbox,
.form-radio {
    width: 18px;
    height: 18px;
    accent-color: var(--color-brand-primary);
}

/* ================================
 * ALERT COMPONENTS
 * ================================ */
.alert {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    border-radius: var(--radius-lg);
    border-left: 4px solid;
    margin-bottom: var(--space-4);
}

.alert-icon {
    font-size: var(--text-xl);
    flex-shrink: 0;
}

.alert-content {
    flex: 1;
}

.alert-title {
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-1);
}

.alert-message {
    font-size: var(--text-sm);
    opacity: 0.9;
}

.alert-success {
    background: var(--color-success-bg);
    border-color: var(--color-success);
    color: var(--color-success);
}

.alert-error {
    background: var(--color-error-bg);
    border-color: var(--color-error);
    color: #fca5a5;
}

.alert-warning {
    background: var(--color-warning-bg);
    border-color: var(--color-warning);
    color: #fcd34d;
}

.alert-info {
    background: var(--color-info-bg);
    border-color: var(--color-info);
    color: #93c5fd;
}

/* ================================
 * STAT CARDS
 * ================================ */
.stat-card {
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-smooth);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, transparent 50%);
    pointer-events: none;
}

.stat-card:hover {
    transform: translateY(-4px);
}

.stat-card-blue { background: var(--gradient-primary); }
.stat-card-emerald { background: var(--gradient-success); }
.stat-card-amber { background: var(--gradient-warning); }
.stat-card-purple { background: var(--gradient-purple); }
.stat-card-cyan { background: var(--gradient-cyan); }

.stat-value {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    color: white;
    line-height: 1;
    margin-bottom: var(--space-2);
}

.stat-label {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.9);
    font-weight: var(--font-medium);
}

/* ================================
 * BADGE COMPONENTS
 * ================================ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.badge-primary {
    background: var(--color-brand-primary-light);
    color: var(--color-brand-primary);
}

.badge-success {
    background: var(--color-success-bg);
    color: var(--color-success);
}

.badge-warning {
    background: var(--color-warning-bg);
    color: var(--color-warning);
}

.badge-error {
    background: var(--color-error-bg);
    color: var(--color-error);
}

.badge-info {
    background: var(--color-info-bg);
    color: var(--color-info);
}

.badge-outline {
    background: transparent;
    border: 1px solid currentColor;
}

/* ================================
 * PROGRESS BAR
 * ================================ */
.progress {
    width: 100%;
    height: 8px;
    background: rgba(51, 65, 85, 0.5);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    border-radius: var(--radius-full);
    transition: width var(--transition-smooth);
}

.progress-bar-blue { background: var(--gradient-primary); }
.progress-bar-emerald { background: var(--gradient-success); }
.progress-bar-amber { background: var(--gradient-warning); }
.progress-bar-rose { background: var(--gradient-danger); }

/* ================================
 * TABLE STYLES
 * ================================ */
.table-modern {
    width: 100%;
    border-collapse: collapse;
}

.table-modern th,
.table-modern td {
    padding: var(--space-4);
    text-align: left;
    border-bottom: 1px solid var(--color-border-light);
}

.table-modern th {
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: rgba(30, 41, 59, 0.5);
}

.table-modern tr:hover td {
    background: rgba(59, 130, 246, 0.05);
}

/* ================================
 * FOOTER STYLES
 * ================================ */
.modern-footer {
    background: rgba(10, 15, 28, 0.95);
    backdrop-filter: blur(var(--blur-lg));
    border-top: 1px solid var(--color-border-light);
    margin-top: var(--space-16);
    padding: var(--space-12) 0 var(--space-8);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-10);
    margin-bottom: var(--space-10);
}

.footer-section h4 {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-4);
}

.footer-section p {
    font-size: var(--text-sm);
    color: var(--color-text-tertiary);
    line-height: var(--leading-relaxed);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-link {
    font-size: var(--text-sm);
    color: var(--color-text-tertiary);
    transition: color var(--transition-fast);
}

.footer-link:hover {
    color: var(--color-brand-primary);
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-sm);
    color: var(--color-text-tertiary);
}

.footer-bottom {
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-border-light);
    text-align: center;
}

.footer-copyright {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

/* ================================
 * UTILITY CLASSES
 * ================================ */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--color-text-primary); }
.text-secondary { color: var(--color-text-secondary); }
.text-muted { color: var(--color-text-muted); }
.text-brand { color: var(--color-brand-primary); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-error { color: var(--color-error); }

.bg-glass { background: var(--color-bg-glass); }
.bg-surface { background: var(--color-bg-surface); }

.rounded-sm { border-radius: var(--radius-sm); }
.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }

.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }

.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }
.px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }
.py-4 { padding-top: var(--space-4); padding-bottom: var(--space-4); }

.m-0 { margin: 0; }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }

.w-full { width: 100%; }
.h-full { height: 100%; }

.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

/* ================================
 * ANIMATIONS
 * ================================ */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 5px rgba(59, 130, 246, 0.2);
    }
    50% {
        box-shadow: 0 0 20px rgba(59, 130, 246, 0.4);
    }
}

.animate-fade-in {
    animation: fadeIn var(--transition-slow);
}

.animate-slide-up {
    animation: slideUp var(--transition-slow);
}

.animate-pulse {
    animation: pulse 2s infinite;
}

.animate-glow {
    animation: glow 2s infinite;
}

/* ================================
 * SCROLLBAR STYLES
 * ================================ */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-full);
    border: 2px solid var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-muted);
}

/* ================================
 * FOCUS STATES (Accessibility)
 * ================================ */
*:focus-visible {
    outline: 2px solid var(--color-brand-primary);
    outline-offset: 2px;
}

/* ================================
 * RESPONSIVE STYLES
 * ================================ */
@media (max-width: 1024px) {
    .container {
        padding: 0 var(--space-4);
    }

    h1 { font-size: var(--text-3xl); }
    h2 { font-size: var(--text-2xl); }
    h3 { font-size: var(--text-xl); }
}

@media (max-width: 768px) {
    :root {
        --text-4xl: 1.875rem;
        --text-3xl: 1.5rem;
        --text-2xl: 1.25rem;
    }

    .container {
        padding: 0 var(--space-4);
    }

    .grid-cols-2,
    .grid-cols-3,
    .grid-cols-4 {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }
}

@media (max-width: 480px) {
    .btn {
        width: 100%;
        justify-content: center;
    }

    .stat-value {
        font-size: var(--text-3xl);
    }
}

/* ================================
 * PRINT STYLES
 * ================================ */
@media print {
    body {
        background: white;
        color: black;
    }

    .glass-card,
    .modern-header,
    .nav-modern,
    .modern-footer {
        background: white;
        border: 1px solid #ccc;
        box-shadow: none;
    }

    .btn {
        display: none;
    }
}