/**
 * JKT Navigator - Unified Design System
 * Zentrale CSS-Datei für konsistentes Design über alle Seiten
 */

:root {
    /* ============================================
       SPACING SCALE (konsistent über alle Seiten)
       ============================================ */
    --space-xs: 0.5rem;      /* 8px */
    --space-sm: 0.75rem;     /* 12px */
    --space-md: 1rem;        /* 16px */
    --space-lg: 1.5rem;      /* 24px */
    --space-xl: 2rem;        /* 32px */
    --space-2xl: 2.5rem;     /* 40px */
    --space-3xl: 3rem;       /* 48px */

    /* ============================================
       BORDER RADIUS
       ============================================ */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;
    --radius-full: 50px;

    /* ============================================
       SHADOWS (4 Stufen für Konsistenz)
       ============================================ */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.3);

    /* ============================================
       GLASS BACKGROUNDS
       ============================================ */
    --glass-light: linear-gradient(135deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0.08));
    --glass-medium: linear-gradient(135deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.06));
    --glass-dark: linear-gradient(135deg, rgba(26, 26, 46, 0.95), rgba(22, 33, 62, 0.95));
    --glass-card: linear-gradient(135deg, rgba(30, 35, 45, 0.85), rgba(20, 25, 35, 0.9));

    /* ============================================
       BACKDROP BLUR
       ============================================ */
    --blur-sm: blur(8px);
    --blur-md: blur(12px);
    --blur-lg: blur(16px);

    /* ============================================
       BRAND GRADIENTS
       ============================================ */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-primary-hover: linear-gradient(135deg, #5568d3 0%, #6a3f8f 100%);
    --gradient-success: linear-gradient(135deg, #28a745 0%, #20c997 100%);
    --gradient-danger: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
    --gradient-warning: linear-gradient(135deg, #ffc107 0%, #fd7e14 100%);
    --gradient-info: linear-gradient(135deg, #17a2b8 0%, #138496 100%);

    /* ============================================
       TYPOGRAPHY SCALE
       ============================================ */
    --text-xs: 0.75rem;      /* 12px */
    --text-sm: 0.875rem;     /* 14px */
    --text-base: 1rem;       /* 16px */
    --text-lg: 1.125rem;     /* 18px */
    --text-xl: 1.25rem;      /* 20px */
    --text-2xl: 1.5rem;      /* 24px */
    --text-3xl: 1.875rem;    /* 30px */
    --text-4xl: 2.25rem;     /* 36px */

    /* ============================================
       FONT WEIGHTS
       ============================================ */
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;

    /* ============================================
       TRANSITIONS
       ============================================ */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);

    /* ============================================
       COLORS (Text & Borders)
       ============================================ */
    --text-primary: rgba(255, 255, 255, 0.98);
    --text-secondary: rgba(255, 255, 255, 0.85);
    --text-tertiary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.6);

    --border-light: rgba(255, 255, 255, 0.1);
    --border-medium: rgba(255, 255, 255, 0.2);
    --border-strong: rgba(255, 255, 255, 0.3);
}

/* ============================================
   TYPOGRAPHY SYSTEM
   ============================================ */
h1, .h1 {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    line-height: 1.2;
    margin-bottom: var(--space-lg);
}

h2, .h2 {
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    line-height: 1.3;
    margin-bottom: var(--space-md);
}

h3, .h3 {
    font-size: var(--text-2xl);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    line-height: 1.4;
    margin-bottom: var(--space-md);
}

h4, .h4 {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: var(--space-sm);
}

h5, .h5 {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: var(--space-sm);
}

h6, .h6 {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    color: var(--text-tertiary);
    line-height: 1.6;
    margin-bottom: var(--space-xs);
}

/* ============================================
   BUTTON SYSTEM
   ============================================ */

/* Primary Button - Haupt-CTA (Clean & Simple) */
.btn-primary,
.btn-auth,
.btn-primary-glass {
    background: #667eea !important;
    border: none !important;
    border-radius: var(--radius-md) !important;
    padding: var(--space-md) var(--space-xl) !important;
    color: white !important;
    font-weight: var(--font-semibold) !important;
    font-size: var(--text-base) !important;
    transition: all var(--transition-base) !important;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.2) !important;
    text-decoration: none !important;
    display: inline-block;
    text-align: center;
}

.btn-primary:hover,
.btn-auth:hover,
.btn-primary-glass:hover {
    background: #5568d3 !important;
    transform: translateY(-2px) !important;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3) !important;
    color: white !important;
}

.btn-primary:active {
    transform: translateY(0) !important;
    box-shadow: 0 1px 4px rgba(102, 126, 234, 0.2) !important;
}

/* Secondary Button - Glassmorphism */
.btn-secondary {
    background: var(--glass-medium) !important;
    backdrop-filter: var(--blur-sm) !important;
    border: 1px solid var(--border-medium) !important;
    border-radius: var(--radius-md) !important;
    padding: var(--space-md) var(--space-lg) !important;
    color: var(--text-primary) !important;
    font-weight: var(--font-medium) !important;
    font-size: var(--text-base) !important;
    transition: all var(--transition-smooth) !important;
    box-shadow: var(--shadow-sm) !important;
}

.btn-secondary:hover {
    background: var(--glass-light) !important;
    border-color: var(--border-strong) !important;
    color: white !important;
    transform: translateY(-2px) !important;
    box-shadow: var(--shadow-md) !important;
}

/* Outline Primary */
.btn-outline-primary {
    background: rgba(102, 126, 234, 0.1) !important;
    backdrop-filter: var(--blur-sm) !important;
    border: 1px solid rgba(102, 126, 234, 0.4) !important;
    border-radius: var(--radius-md) !important;
    padding: var(--space-md) var(--space-lg) !important;
    color: var(--text-primary) !important;
    font-weight: var(--font-medium) !important;
    transition: all var(--transition-base) !important;
}

.btn-outline-primary:hover {
    background: rgba(102, 126, 234, 0.2) !important;
    border-color: rgba(102, 126, 234, 0.6) !important;
    color: white !important;
    transform: translateY(-2px) !important;
}

/* Success Button */
.btn-success,
.btn-success-glass {
    background: #28a745 !important;
    border: none !important;
    border-radius: var(--radius-md) !important;
    padding: var(--space-md) var(--space-xl) !important;
    color: white !important;
    font-weight: var(--font-semibold) !important;
    transition: all var(--transition-base) !important;
    box-shadow: 0 2px 8px rgba(40, 167, 69, 0.2) !important;
}

.btn-success:hover,
.btn-success-glass:hover {
    background: #218838 !important;
    transform: translateY(-2px) !important;
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.3) !important;
    color: white !important;
}

/* Danger Button */
.btn-danger,
.btn-danger-glass {
    background: #dc3545 !important;
    border: none !important;
    border-radius: var(--radius-md) !important;
    padding: var(--space-md) var(--space-xl) !important;
    color: white !important;
    font-weight: var(--font-semibold) !important;
    transition: all var(--transition-base) !important;
    box-shadow: 0 2px 8px rgba(220, 53, 69, 0.2) !important;
}

.btn-danger:hover,
.btn-danger-glass:hover {
    background: #c82333 !important;
    transform: translateY(-2px) !important;
    box-shadow: 0 4px 12px rgba(220, 53, 69, 0.3) !important;
    color: white !important;
}

/* Info Button */
.btn-info,
.btn-info-glass {
    background: #17a2b8 !important;
    border: none !important;
    border-radius: var(--radius-md) !important;
    padding: var(--space-md) var(--space-xl) !important;
    color: white !important;
    font-weight: var(--font-semibold) !important;
    transition: all var(--transition-base) !important;
    box-shadow: 0 2px 8px rgba(23, 162, 184, 0.2) !important;
}

.btn-info:hover,
.btn-info-glass:hover {
    background: #138496 !important;
    transform: translateY(-2px) !important;
    box-shadow: 0 4px 12px rgba(23, 162, 184, 0.3) !important;
    color: white !important;
}

/* Button Sizes */
.btn-sm {
    padding: var(--space-sm) var(--space-lg) !important;
    font-size: var(--text-sm) !important;
}

.btn-lg {
    padding: var(--space-lg) var(--space-2xl) !important;
    font-size: var(--text-lg) !important;
}

/* ============================================
   CARD SYSTEM
   ============================================ */

/* Main Card - Für große Container (Dashboard, Journale) */
.main-card {
    background: var(--glass-dark);
    backdrop-filter: var(--blur-lg);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    padding: var(--space-xl);
    transition: all var(--transition-base);
}

/* Content Card - Für Inhaltsboxen */
.content-card {
    background: var(--glass-light);
    backdrop-filter: var(--blur-md);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-smooth);
}

.content-card:hover {
    border-color: var(--border-strong);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* Small Card - Für kleinere Elemente */
.small-card {
    background: var(--glass-medium);
    backdrop-filter: var(--blur-sm);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.small-card:hover {
    border-color: var(--border-medium);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ============================================
   ALERT SYSTEM
   ============================================ */
.alert {
    backdrop-filter: var(--blur-md);
    border-radius: var(--radius-md);
    border: 1px solid;
    padding: var(--space-md) var(--space-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--space-md);
}

.alert-success {
    background: linear-gradient(135deg, rgba(40, 167, 69, 0.15), rgba(40, 167, 69, 0.08));
    border-color: rgba(40, 167, 69, 0.3);
    color: var(--text-primary);
}

.alert-info {
    background: linear-gradient(135deg, rgba(23, 162, 184, 0.15), rgba(23, 162, 184, 0.08));
    border-color: rgba(23, 162, 184, 0.3);
    color: var(--text-primary);
}

.alert-warning {
    background: linear-gradient(135deg, rgba(255, 193, 7, 0.15), rgba(255, 193, 7, 0.08));
    border-color: rgba(255, 193, 7, 0.3);
    color: var(--text-primary);
}

.alert-danger {
    background: linear-gradient(135deg, rgba(220, 53, 69, 0.15), rgba(220, 53, 69, 0.08));
    border-color: rgba(220, 53, 69, 0.3);
    color: var(--text-primary);
}

/* ============================================
   FORM ELEMENTS
   ============================================ */
.form-label {
    color: var(--text-secondary);
    font-weight: var(--font-medium);
    margin-bottom: var(--space-xs);
    font-size: var(--text-sm);
}

.form-control {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border-medium);
    color: white;
    border-radius: var(--radius-md);
    padding: var(--space-sm) var(--space-md);
    transition: all var(--transition-base);
    font-size: var(--text-base);
}

.form-control:focus {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(102, 126, 234, 0.5);
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
    color: white;
    outline: none;
}

.form-control::placeholder {
    color: var(--text-muted);
}

/* Input Groups */
.input-group-text {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border-medium);
    color: var(--text-tertiary);
    border-right: none;
}

.input-group .form-control {
    border-left: none;
}

/* ============================================
   UTILITIES
   ============================================ */
.text-muted {
    color: var(--text-muted) !important;
}

.text-gradient-primary {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Spacing Utilities */
.gap-xs { gap: var(--space-xs); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 1; transform: translateX(0); }
}

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

.animate-slide-in {
    animation: slideIn var(--transition-base);
}