:root {
    /* Colors - High Definition Palette */
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --secondary: #0ea5e9;
    --accent: #f43f5e;
    
    /* Semantic Colors */
    --success: #10b981;
    --error: #f43f5e;
    --warning: #f59e0b;
    --info: #3b82f6;

    /* Light Mode - Enhanced Contrast */
    --bg-main: #fcfdfe;
    --bg-card: rgba(255, 255, 255, 0.85);
    --text-main: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --border: #e2e8f0;
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.4);
    --shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.05), 0 2px 10px -2px rgba(0, 0, 0, 0.03);

    /* Dark Mode - Professional Slate */
    --dark-bg-main: #020617;
    --dark-bg-card: #0f172a;
    --dark-text-main: #f8fafc; /* Pure white/slate */
    --dark-text-secondary: #cbd5e1; /* Lightened from #94a3b8 */
    --dark-text-muted: #64748b;
    --dark-border: #1e293b;
    --dark-glass-bg: rgba(15, 23, 42, 0.85);
    --dark-glass-border: rgba(255, 255, 255, 0.1);
    --dark-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);

    /* Transitions */
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--text-main);
    background-color: var(--bg-main);
    min-height: 100vh;
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
    overflow-x: hidden;
}

body.dark-mode {
    background-color: var(--dark-bg-main);
    color: var(--dark-text-main);
}

/* Glassmorphism System */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow);
}

.dark-mode .glass {
    background: var(--dark-glass-bg);
    border: 1px solid var(--dark-glass-border);
    box-shadow: var(--dark-shadow);
}

/* Global Typography */
h1, h2, h3, h4 {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
    color: var(--text-main);
}

.dark-mode h1, .dark-mode h2, .dark-mode h3, .dark-mode h4 {
    color: var(--dark-text-main);
}

/* Shared Header Pattern */
.global-header {
    height: 56px;
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
}

.dark-mode .global-header {
    background: var(--dark-glass-bg);
    border-color: var(--dark-border);
}

.brand-name {
    color: var(--text-main);
    transition: color 0.3s ease;
}

.dark-mode .brand-name {
    color: var(--dark-text-main);
}

.nav-logo {
    border-radius: 50%;
    overflow: hidden;
    transition: var(--transition);
}

.dark-mode .nav-logo {
    filter: brightness(0.9) contrast(1.1);
}

/* New Utilities */
.top-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    z-index: 2000;
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.floating-badge {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    padding: 0.75rem 1.25rem;
    border-radius: 99px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    z-index: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

/* Buttons Base */
.btn-premium {
    padding: 0.8rem 1.5rem;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-main);
}

.dark-mode .btn-premium {
    border-color: var(--dark-border);
    color: var(--dark-text-main) !important;
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}