/* ==========================================
   TaxiPlanner – Design Tokens / CSS Variables
   ========================================== */

:root {
    /* === Farben: Dunkles Premium-Theme === */
    --bg-primary: #0c0e14;
    --bg-secondary: #111420;
    --bg-card: #171b28;
    --bg-card-hover: #1c2133;
    --bg-elevated: #1e2335;
    --bg-input: #141722;
    --bg-modal-overlay: rgba(0, 0, 0, 0.65);

    /* Borders */
    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-default: rgba(255, 255, 255, 0.1);
    --border-strong: rgba(255, 255, 255, 0.15);
    --border-focus: rgba(245, 158, 11, 0.5);

    /* Text */
    --text-primary: #f1f3f9;
    --text-secondary: #9ca3b8;
    --text-muted: #6b7280;
    --text-inverse: #0c0e14;

    /* Akzentfarbe: Gold/Amber (Taxi-Branding) */
    --accent: #f59e0b;
    --accent-hover: #d97706;
    --accent-light: rgba(245, 158, 11, 0.15);
    --accent-glow: rgba(245, 158, 11, 0.25);

    /* Status-Farben */
    --success: #10b981;
    --success-light: rgba(16, 185, 129, 0.15);
    --warning: #f59e0b;
    --warning-light: rgba(245, 158, 11, 0.15);
    --danger: #ef4444;
    --danger-light: rgba(239, 68, 68, 0.15);
    --info: #3b82f6;
    --info-light: rgba(59, 130, 246, 0.15);

    /* Fahrtkategorien-Farben */
    --cat-krankenfahrt: #3b82f6;
    --cat-flughafen: #8b5cf6;
    --cat-stadt: #10b981;
    --cat-sonstige: #6b7280;

    /* === Typografie === */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    --text-xs: 0.75rem;
    --text-sm: 0.8125rem;
    --text-base: 0.9375rem;
    --text-lg: 1.125rem;
    --text-xl: 1.3125rem;
    --text-2xl: 1.625rem;
    --text-3xl: 2rem;
    --text-4xl: 2.5rem;

    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;

    --leading-tight: 1.25;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;

    /* === Spacing === */
    --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;

    /* === Radii === */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    --radius-full: 9999px;

    /* === Shadows === */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 28px rgba(0, 0, 0, 0.35);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 20px rgba(245, 158, 11, 0.2);
    --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.2), 0 0 0 1px var(--border-subtle);

    /* === Transitions === */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

    /* === Layout === */
    --sidebar-width: 260px;
    --header-height: 64px;
    --bottom-nav-height: 68px;
    --content-max-width: 1200px;

    /* === Z-Index === */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-modal-backdrop: 300;
    --z-modal: 400;
    --z-toast: 500;
}

/* Glassmorphism Mixins via classes */
.glass {
    background: rgba(23, 27, 40, 0.75);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-subtle);
}

.glass-strong {
    background: rgba(23, 27, 40, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-default);
}