/* Light Theme (Default) */
:root {
    --bg-app: #f8fafc;
    --bg-surface: #ffffff;
    --bg-surface-sub: #f1f5f9;
    --bg-surface-elevated: #ffffff;
    --bg-header: rgba(255, 255, 255, 0.95);
    
    --border-color: #e2e8f0;
    --border-subtle: #cbd5e1;
    --border-focus: #3b82f6;

    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;

    --primary-blue: #2563eb;
    --primary-blue-hover: #1d4ed8;
    --primary-blue-light: #eff6ff;

    --emerald-profit: #10b981;
    --emerald-dark: #059669;
    --emerald-light: #ecfdf5;

    --amber-warning: #f59e0b;
    --amber-dark: #d97706;
    --amber-light: #fffbeb;

    --purple-rnd: #7c3aed;
    --purple-light: #f5f3ff;

    --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.03);

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
}

/* Dark Theme */
[data-theme="dark"] {
    --bg-app: #0b0f19;
    --bg-surface: #111827;
    --bg-surface-sub: #1e293b;
    --bg-surface-elevated: #1f293d;
    --bg-header: rgba(17, 24, 39, 0.95);

    --border-color: #1f293d;
    --border-subtle: #334155;
    --border-focus: #60a5fa;

    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;

    --primary-blue: #3b82f6;
    --primary-blue-hover: #2563eb;
    --primary-blue-light: #1e293b;

    --emerald-profit: #34d399;
    --emerald-dark: #10b981;
    --emerald-light: #064e3b;

    --amber-warning: #fbbf24;
    --amber-dark: #f59e0b;
    --amber-light: #451a03;

    --purple-rnd: #a78bfa;
    --purple-light: #2e1065;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.35);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.45), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 20px -3px rgba(0, 0, 0, 0.6);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--bg-app);
    color: var(--text-primary);
    font-family: var(--font-sans);
    min-height: 100vh;
    overflow-x: hidden;
    transition: background-color 0.2s ease, color 0.2s ease;
}

/* Form Controls & Dropdown Dark Mode Coverage */
input, select, textarea {
    background-color: var(--bg-surface);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--border-focus);
}

/* Custom Scrollbar for Dark & Light */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--border-subtle);
    border-radius: 3px;
}

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

.font-mono {
    font-family: var(--font-mono);
}