/* ============================================
   PartyRadar - Design System
   Modern Dark Theme mit Glassmorphism
   ============================================ */

/* === CSS Custom Properties === */
:root {
    /* Primärfarben - Violett/Indigo */
    --primary-h: 255;
    --primary-s: 70%;
    --primary-l: 60%;
    --primary: hsl(var(--primary-h), var(--primary-s), var(--primary-l));
    --primary-dark: hsl(var(--primary-h), var(--primary-s), 45%);
    --primary-light: hsl(var(--primary-h), 60%, 80%);
    --primary-subtle: hsla(var(--primary-h), var(--primary-s), var(--primary-l), 0.15);
    
    /* Akzentfarbe - Cyan/Teal */
    --accent-h: 175;
    --accent-s: 80%;
    --accent-l: 50%;
    --accent: hsl(var(--accent-h), var(--accent-s), var(--accent-l));
    --accent-subtle: hsla(var(--accent-h), var(--accent-s), var(--accent-l), 0.15);

    /* Hintergrund-System */
    --bg-base: hsl(230, 25%, 7%);
    --bg-surface: hsl(230, 20%, 11%);
    --bg-elevated: hsl(230, 18%, 15%);
    --bg-overlay: hsl(230, 20%, 18%);
    
    /* Text-System */
    --text-primary: hsl(0, 0%, 96%);
    --text-secondary: hsl(230, 15%, 70%);
    --text-muted: hsl(230, 10%, 50%);
    --text-inverse: hsl(230, 25%, 7%);
    
    /* Status-Farben */
    --success: hsl(152, 60%, 48%);
    --success-subtle: hsla(152, 60%, 48%, 0.15);
    --warning: hsl(38, 92%, 55%);
    --warning-subtle: hsla(38, 92%, 55%, 0.15);
    --danger: hsl(0, 72%, 58%);
    --danger-subtle: hsla(0, 72%, 58%, 0.15);
    --info: hsl(200, 80%, 55%);
    --info-subtle: hsla(200, 80%, 55%, 0.15);
    
    /* Glass-Effekte */
    --glass-bg: rgba(255, 255, 255, 0.04);
    --glass-bg-hover: rgba(255, 255, 255, 0.07);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-border-hover: rgba(255, 255, 255, 0.15);
    
    /* Border & Radius */
    --border-default: rgba(255, 255, 255, 0.08);
    --border-strong: rgba(255, 255, 255, 0.15);
    --radius-xs: 6px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Schatten */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 20px hsla(var(--primary-h), var(--primary-s), var(--primary-l), 0.3);
    
    /* Übergang */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Sidebar-Breite */
    --sidebar-width: 260px;
    
    /* Typografie */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

/* === Reset & Base === */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    background-color: var(--bg-base);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* === Typografie === */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.3;
    color: var(--text-primary);
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.1rem; }

.display-4 {
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: -0.03em;
}

p {
    color: var(--text-secondary);
}

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

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

/* === Glass Card System === */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), 
                box-shadow var(--transition-normal),
                border-color var(--transition-normal);
}

.glass-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--glass-border-hover);
}

.glass-card.no-hover:hover {
    transform: none;
    box-shadow: var(--shadow-md);
}

/* === Button System === */
.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border: none;
    padding: 0.65rem 1.4rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    line-height: 1.5;
}

.btn-primary:hover {
    filter: brightness(1.1);
    box-shadow: var(--shadow-glow);
    color: white;
    transform: translateY(-1px);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--glass-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-default);
    padding: 0.65rem 1.4rem;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    line-height: 1.5;
}

.btn-secondary:hover {
    background: var(--glass-bg-hover);
    border-color: var(--border-strong);
    color: white;
}

.btn-outline-secondary {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-default);
    transition: all var(--transition-fast);
}

.btn-outline-secondary:hover {
    background: var(--glass-bg-hover);
    color: var(--text-primary);
    border-color: var(--border-strong);
}

.btn-outline-light {
    color: var(--text-secondary);
    border-color: var(--border-default);
}

.btn-outline-light:hover {
    background: var(--glass-bg-hover);
    color: var(--text-primary);
    border-color: var(--border-strong);
}

.btn-success {
    background: var(--success);
    color: white;
    border: none;
}

.btn-success:hover {
    filter: brightness(1.1);
    color: white;
}

.btn-danger {
    background: var(--danger);
    color: white;
    border: none;
}

.btn-danger:hover {
    filter: brightness(1.1);
    color: white;
}

.btn-warning {
    background: var(--warning);
    color: var(--text-inverse);
    border: none;
}

.btn-link {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    transition: color var(--transition-fast);
}

.btn-link:hover {
    color: var(--text-primary);
    text-decoration: none;
}

/* Button Größen */
.btn-sm {
    padding: 0.35rem 0.8rem;
    font-size: 0.8rem;
}

.btn-lg {
    padding: 0.85rem 2rem;
    font-size: 1rem;
}

/* === Formular-Elemente === */
.form-control, .form-select {
    background-color: var(--bg-elevated);
    color: var(--text-primary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-sm);
    padding: 0.6rem 0.9rem;
    font-size: 0.9rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus, .form-select:focus {
    background-color: var(--bg-elevated);
    color: var(--text-primary);
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-subtle);
    outline: none;
}

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

.form-label {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.85rem;
    margin-bottom: 0.4rem;
}

.form-text {
    color: var(--text-muted);
    font-size: 0.8rem;
}

.input-group-text {
    background-color: var(--bg-overlay);
    color: var(--text-secondary);
    border: 1px solid var(--border-default);
    font-size: 0.9rem;
}

/* Checkbox & Radio */
.form-check-input {
    background-color: var(--bg-elevated);
    border-color: var(--border-strong);
}

.form-check-input:checked {
    background-color: var(--primary);
    border-color: var(--primary);
}

.form-check-label {
    color: var(--text-secondary);
}

/* === Badge System === */
.badge {
    font-weight: 500;
    font-size: 0.75rem;
    padding: 0.35rem 0.65rem;
    border-radius: var(--radius-full);
}

.bg-primary-subtle {
    background-color: var(--primary-subtle) !important;
}

.text-primary {
    color: var(--primary) !important;
}

/* === Alert / Hinweis-Boxen === */
.alert {
    border-radius: var(--radius-md);
    border: 1px solid;
    padding: 1rem 1.25rem;
}

.alert-danger, .text-danger {
    color: var(--danger) !important;
}

.alert-warning, .text-warning {
    color: var(--warning) !important;
}

.alert-success, .text-success {
    color: var(--success) !important;
}

.alert-info, .text-info {
    color: var(--info) !important;
}

/* === Listen === */
.list-group-item {
    background-color: var(--bg-surface);
    color: var(--text-primary);
    border-color: var(--border-default);
    transition: background-color var(--transition-fast);
}

.list-group-item:hover {
    background-color: var(--bg-elevated);
}

.list-group-item.bg-dark {
    background-color: var(--bg-elevated) !important;
}

/* === Spinner === */
.spinner-border.text-primary {
    color: var(--primary) !important;
}

/* === Tabs / Nav-Tabs === */
.nav-tabs {
    border-bottom-color: var(--border-default);
}

.nav-tabs .nav-link {
    color: var(--text-secondary);
    border: none;
    padding: 0.75rem 1.25rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

.nav-tabs .nav-link:hover {
    color: var(--text-primary);
    background: var(--glass-bg);
    border-color: transparent;
}

.nav-tabs .nav-link.active {
    color: var(--primary);
    background: var(--primary-subtle);
    border-color: transparent;
    font-weight: 600;
}

/* === Modal Override === */
.modal-content {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.modal-header {
    border-bottom-color: var(--border-default);
    padding: 1.25rem 1.5rem;
}

.modal-header .modal-title {
    color: var(--text-primary);
    font-weight: 600;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    border-top-color: var(--border-default);
    padding: 1rem 1.5rem;
}

.btn-close {
    filter: invert(1) grayscale(100%) brightness(200%);
}

/* === Toast === */
.toast {
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
}

/* === Table === */
.table {
    color: var(--text-primary);
}

.table > :not(caption) > * > * {
    background-color: transparent;
    color: var(--text-primary);
    border-bottom-color: var(--border-default);
}

.table-hover > tbody > tr:hover > * {
    background-color: var(--glass-bg);
    color: var(--text-primary);
}

/* === Dropdown === */
.dropdown-menu {
    background-color: var(--bg-elevated);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
}

.dropdown-item {
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.dropdown-item:hover {
    background-color: var(--glass-bg-hover);
    color: var(--text-primary);
}

/* === Layout === */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.main-content {
    flex: 1;
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

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

.primary-text {
    color: var(--primary);
}

.border-warning {
    border-color: var(--warning) !important;
}

.border-secondary {
    border-color: var(--border-default) !important;
}

/* Icon Circle für Dashboard-Karten */
.icon-circle {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-full);
    background: var(--primary-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* === Scrollbar === */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--bg-overlay);
    border-radius: var(--radius-full);
}

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

/* === Auswahl-Highlight === */
::selection {
    background: var(--primary-subtle);
    color: var(--text-primary);
}

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

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

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

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

@keyframes shimmer {
    from { background-position: -200% 0; }
    to { background-position: 200% 0; }
}

.animate-fade {
    animation: fadeIn 0.4s ease forwards;
}

.animate-fade-up {
    animation: fadeInUp 0.5s ease forwards;
}

.animate-slide-in {
    animation: slideInLeft 0.3s ease forwards;
}

/* Staggered Animation für Listen */
.stagger-item {
    animation: fadeInUp 0.4s ease forwards;
    opacity: 0;
}

.stagger-item:nth-child(1) { animation-delay: 0.05s; }
.stagger-item:nth-child(2) { animation-delay: 0.1s; }
.stagger-item:nth-child(3) { animation-delay: 0.15s; }
.stagger-item:nth-child(4) { animation-delay: 0.2s; }
.stagger-item:nth-child(5) { animation-delay: 0.25s; }
.stagger-item:nth-child(6) { animation-delay: 0.3s; }

/* Skeleton Loading */
.skeleton {
    background: linear-gradient(90deg, var(--bg-elevated) 0%, var(--bg-overlay) 50%, var(--bg-elevated) 100%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

/* === Responsive === */
@media (max-width: 768px) {
    .display-4 {
        font-size: 1.6rem;
    }
    
    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.25rem; }
    h3 { font-size: 1.1rem; }
    
    .glass-card {
        padding: 1.25rem;
        border-radius: var(--radius-md);
    }
    
    .main-content {
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    .display-4 {
        font-size: 1.4rem;
    }
    
    .btn-primary, .btn-secondary {
        padding: 0.55rem 1rem;
        font-size: 0.85rem;
    }
}