/**
 * NAMETAG STUDIO - Modern Professional Design System
 * Custom CSS Framework inspiriert von Tailwind/Bootstrap
 */

/* ==================== RESET & VARIABLES ==================== */

:root {
    /* Primary Colors - Modern Indigo/Violet */
    --primary-50: #f5f3ff;
    --primary-100: #ede9fe;
    --primary-200: #ddd6fe;
    --primary-300: #c4b5fd;
    --primary-400: #a78bfa;
    --primary-500: #8b5cf6;
    --primary-600: #7c3aed;
    --primary-700: #6d28d9;
    --primary-800: #5b21b6;
    --primary-900: #4c1d95;
    
    /* Grays - Warmer, softer tones */
    --gray-50: #fafafa;
    --gray-100: #f4f4f5;
    --gray-200: #e4e4e7;
    --gray-300: #d4d4d8;
    --gray-400: #a1a1aa;
    --gray-500: #71717a;
    --gray-600: #52525b;
    --gray-700: #3f3f46;
    --gray-800: #27272a;
    --gray-900: #18181b;
    
    /* Status Colors - Modern & Vibrant */
    --success: #22c55e;
    --success-light: #dcfce7;
    --success-50: #dcfce7;
    --success-100: #bbf7d0;
    --success-500: #22c55e;
    --success-600: #16a34a;
    --success-700: #15803d;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --warning-50: #fef3c7;
    --warning-100: #fde68a;
    --warning-500: #f59e0b;
    --warning-600: #d97706;
    --warning-700: #b45309;
    --danger: #ef4444;
    --danger-light: #fee2e2;
    --danger-50: #fee2e2;
    --danger-100: #fecaca;
    --danger-500: #ef4444;
    --danger-600: #dc2626;
    --danger-700: #b91c1c;
    --info: #06b6d4;
    --info-light: #cffafe;
    --info-50: #cffafe;
    --info-100: #a5f3fc;
    --info-500: #06b6d4;
    --info-600: #0891b2;
    --info-700: #0e7490;
    
    /* Background & Text Colors (Light Mode) */
    --bg-primary: #ffffff;
    --bg-secondary: #fafafa;
    --bg-tertiary: #f4f4f5;
    --text-primary: #18181b;
    --text-secondary: #52525b;
    --text-tertiary: #71717a;
    --border-color: #e4e4e7;
    --border-color-light: #f4f4f5;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Typography */
    --font-sans: 'Futura', 'Futura PT', 'Trebuchet MS', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
}

/* Dark Mode - Entfernt (kann später wieder aktiviert werden) */

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

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    letter-spacing: -0.01em;
    transition: background-color var(--transition-base), color var(--transition-base);
}

/* ==================== TYPOGRAPHY ==================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    transition: color var(--transition-base);
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.875rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-md);
    color: var(--gray-700);
}

a {
    color: var(--primary-600);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--primary-700);
}

/* ==================== LAYOUT ==================== */

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--spacing-lg);
}

/* Grid System */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
    .grid-cols-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .grid-cols-2,
    .grid-cols-3,
    .grid-cols-4 { grid-template-columns: 1fr; }
}

/* Flex Utilities */
.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.items-center {
    align-items: center;
}

.justify-between {
    justify-content: space-between;
}

.justify-center {
    justify-content: center;
}

.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

/* ==================== CARDS ==================== */

.card {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    overflow: hidden;
    transition: all 0.2s;
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--gray-200);
    background: var(--gray-50);
}

.card-body {
    padding: var(--spacing-lg);
}

.card-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--gray-200);
    background: var(--gray-50);
}

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900);
    margin: 0;
}

/* ==================== BUTTONS ==================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1.5;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--primary-600);
    color: white;
    border-color: var(--primary-600);
}

.btn-primary:hover:not(:disabled) {
    background: var(--primary-700);
    border-color: var(--primary-700);
}

.btn-secondary {
    background: white;
    color: var(--gray-700);
    border-color: var(--gray-300);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--gray-50);
    border-color: var(--gray-400);
}

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

.btn-success:hover:not(:disabled) {
    background: #0ea572;
}

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

.btn-danger:hover:not(:disabled) {
    background: #dc2626;
}

.btn-sm {
    padding: 0.375rem 0.875rem;
    font-size: 0.8125rem;
}

.btn-lg {
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
}

.btn-block {
    display: flex;
    width: 100%;
}

.btn-icon {
    padding: 0.625rem;
    aspect-ratio: 1;
}

.btn-icon-only {
    padding: 0.625rem;
    aspect-ratio: 1;
    min-width: auto;
}

/* ==================== FORMS ==================== */

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: var(--spacing-sm);
}

.form-control,
.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 0.9375rem;
    line-height: 1.5;
    color: var(--gray-900);
    background: white;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    transition: all 0.2s;
    font-family: inherit;
}

.form-control:hover,
.form-input:hover,
.form-select:hover {
    border-color: var(--gray-400);
}

.form-control:focus,
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px var(--primary-100);
}

.form-control::placeholder,
.form-input::placeholder {
    color: var(--gray-400);
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

/* Select Styling */
.form-select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%236b7280'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1.25rem;
    padding-right: 2.5rem;
}

/* Input Sizes */
.form-control-sm,
.form-input-sm {
    padding: 0.5rem 0.75rem;
    font-size: 0.8125rem;
}

.form-control-lg,
.form-input-lg {
    padding: 0.875rem 1.25rem;
    font-size: 1rem;
}

.form-error {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: 0.8125rem;
    color: var(--danger);
}

.form-help {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: 0.8125rem;
    color: var(--gray-500);
}

/* Checkbox & Radio */
.form-check {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.form-check-input,
input[type="checkbox"],
input[type="radio"] {
    width: 1.125rem;
    height: 1.125rem;
    cursor: pointer;
    accent-color: var(--primary-600);
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-sm);
    transition: all 0.15s;
}

input[type="checkbox"]:hover,
input[type="radio"]:hover {
    border-color: var(--primary-500);
}

input[type="checkbox"]:focus,
input[type="radio"]:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--primary-100);
}

.form-check-label {
    font-size: 0.875rem;
    color: var(--gray-700);
    cursor: pointer;
}

/* Input with icon */
.input-group {
    position: relative;
}

.input-group .form-input,
.input-group .form-control {
    padding-left: 2.75rem;
}

.input-group-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
    pointer-events: none;
}

/* Input States */
.form-input.is-invalid,
.form-control.is-invalid,
.form-select.is-invalid {
    border-color: var(--danger);
}

.form-input.is-invalid:focus,
.form-control.is-invalid:focus,
.form-select.is-invalid:focus {
    box-shadow: 0 0 0 3px var(--danger-light);
}

.form-input.is-valid,
.form-control.is-valid,
.form-select.is-valid {
    border-color: var(--success);
}

.form-input.is-valid:focus,
.form-control.is-valid:focus,
.form-select.is-valid:focus {
    box-shadow: 0 0 0 3px var(--success-light);
}

/* Disabled State */
.form-input:disabled,
.form-control:disabled,
.form-select:disabled {
    background-color: var(--gray-100);
    cursor: not-allowed;
    opacity: 0.7;
}

/* ==================== TABLES ==================== */

.table-responsive {
    overflow-x: auto;
    margin: var(--spacing-md) 0;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.table thead {
    background: var(--gray-50);
    border-bottom: 2px solid var(--gray-200);
}

.table th {
    padding: 0.875rem;
    text-align: left;
    font-weight: 600;
    color: var(--gray-700);
    white-space: nowrap;
}

.table td {
    padding: 0.875rem;
    border-bottom: 1px solid var(--gray-200);
    color: var(--gray-700);
}

.table tbody tr:hover {
    background: var(--gray-50);
}

.table tbody tr:last-child td {
    border-bottom: none;
}

/* ==================== BADGES ==================== */

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.625rem;
    font-size: 0.75rem;
    font-weight: 500;
    line-height: 1;
    border-radius: var(--radius-md);
    white-space: nowrap;
}

.badge-primary {
    background: var(--primary-100);
    color: var(--primary-700);
}

.badge-success {
    background: var(--success-light);
    color: #065f46;
}

.badge-warning {
    background: var(--warning-light);
    color: #92400e;
}

.badge-danger {
    background: var(--danger-light);
    color: #991b1b;
}

.badge-gray {
    background: var(--gray-200);
    color: var(--gray-700);
}

/* ==================== ALERTS ==================== */

.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border-left: 4px solid;
    margin-bottom: var(--spacing-lg);
}

.alert-success {
    background: var(--success-light);
    border-color: var(--success);
    color: #065f46;
}

.alert-warning {
    background: var(--warning-light);
    border-color: var(--warning);
    color: #92400e;
}

.alert-danger {
    background: var(--danger-light);
    border-color: var(--danger);
    color: #991b1b;
}

.alert-info {
    background: var(--info-light);
    border-color: var(--info);
    color: #1e40af;
}

/* ==================== MODALS ==================== */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--spacing-lg);
    overflow-y: auto;
}

.modal {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    position: relative;
    margin: auto;
}

.modal-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
}

.modal-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
}

.modal-body {
    padding: var(--spacing-lg);
    overflow-y: auto;
    overflow-x: hidden;
    flex: 1 1 auto;
    min-height: 0;
    max-height: calc(90vh - 180px);
}

.modal-body::-webkit-scrollbar {
    width: 8px;
}

.modal-body::-webkit-scrollbar-track {
    background: var(--gray-100);
}

.modal-body::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: 4px;
}

.modal-body::-webkit-scrollbar-thumb:hover {
    background: var(--gray-400);
}

.modal-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--gray-200);
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
    flex-shrink: 0;
    background: white;
    position: relative;
    z-index: 1;
}

/* ==================== STATS CARDS ==================== */

.stats-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
    transition: all 0.2s;
}

.stats-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.stats-icon {
    width: 3rem;
    height: 3rem;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.stats-icon.primary {
    background: var(--primary-100);
    color: var(--primary-600);
}

.stats-icon.success {
    background: var(--success-light);
    color: var(--success);
}

.stats-icon.warning {
    background: var(--warning-light);
    color: var(--warning);
}

.stats-icon.danger {
    background: var(--danger-light);
    color: var(--danger);
}

.stats-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

.stats-label {
    font-size: 0.875rem;
    color: var(--gray-600);
    font-weight: 500;
}

/* ==================== UTILITIES ==================== */

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }

.text-gray { color: var(--gray-600); }
.text-primary { color: var(--primary-600); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }

.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.hidden { display: none; }

/* ==================== LOADING ==================== */

.loading-spinner {
    border: 3px solid var(--gray-200);
    border-top-color: var(--primary-600);
    border-radius: 50%;
    width: 2rem;
    height: 2rem;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ==================== RESPONSIVE ==================== */

@media (max-width: 768px) {
    :root {
        font-size: 14px;
    }
    
    .modal {
        max-width: 100%;
        margin: 0;
        border-radius: 0;
        max-height: 100vh;
    }
    
    .modal-body {
        max-height: calc(100vh - 120px);
    }
    
    .modal-overlay {
        padding: 0;
        align-items: flex-end;
    }
}

/* ==================== CONFIRM MODAL ==================== */

.confirm-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    padding: var(--spacing-lg);
    animation: fadeIn 0.2s ease-out;
}

.confirm-modal {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    max-width: 500px;
    width: 100%;
    overflow: hidden;
    animation: slideUp 0.3s ease-out;
}

.confirm-modal-header {
    padding: var(--spacing-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    border-bottom: 1px solid var(--gray-200);
}

.confirm-modal-icon {
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    background: var(--warning-light);
    color: var(--warning-600);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.confirm-modal-icon.danger {
    background: var(--danger-light);
    color: var(--danger-600);
}

.confirm-modal-icon.info {
    background: var(--info-light);
    color: var(--info-600);
}

.confirm-modal-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
    color: var(--gray-900);
}

.confirm-modal-body {
    padding: var(--spacing-xl);
}

.confirm-modal-body p {
    margin: 0;
    color: var(--gray-700);
    line-height: 1.6;
    font-size: 1rem;
}

.confirm-modal-footer {
    padding: var(--spacing-lg) var(--spacing-xl);
    border-top: 1px solid var(--gray-200);
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
    background: var(--gray-50);
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

/* ==================== CONFIRM MODAL ==================== */

.confirm-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    padding: var(--spacing-lg);
    animation: fadeIn 0.2s ease-out;
}

.confirm-modal {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    max-width: 500px;
    width: 100%;
    overflow: hidden;
    animation: slideUp 0.3s ease-out;
}

.confirm-modal-header {
    padding: var(--spacing-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    border-bottom: 1px solid var(--gray-200);
}

.confirm-modal-icon {
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    background: var(--warning-light);
    color: var(--warning-600);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.confirm-modal-icon.danger {
    background: var(--danger-light);
    color: var(--danger-600);
}

.confirm-modal-icon.info {
    background: var(--info-light);
    color: var(--info-600);
}

.confirm-modal-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
    color: var(--gray-900);
}

.confirm-modal-body {
    padding: var(--spacing-xl);
}

.confirm-modal-body p {
    margin: 0;
    color: var(--gray-700);
    line-height: 1.6;
    font-size: 1rem;
}

.confirm-modal-footer {
    padding: var(--spacing-lg) var(--spacing-xl);
    border-top: 1px solid var(--gray-200);
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
    background: var(--gray-50);
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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