/**
 * Global CSS Framework
 * Gemeinsame Styles für alle Mini-Apps
 * Reset, Layout, Komponenten, Utilities
 */

/* ========================================
   1. RESET & BASE STYLES
   ======================================== */

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-sans);
    background-color: var(--color-gray-50);
    color: var(--color-gray-900);
    line-height: var(--line-height-base);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ========================================
   2. HEADER & NAVIGATION
   ======================================== */

.app-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    padding: var(--spacing-md) 0;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-xl);
}

/* Logo & Branding */
.header-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    min-width: 200px;
}

.brand-logo {
    text-decoration: none;
    color: white;
    display: flex;
    align-items: center;
    font-weight: bold;
    font-size: 1.25rem;
    transition: transform 0.3s ease;
}

.brand-logo:hover {
    transform: scale(1.05);
}

.logo-text {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.brand-subtitle {
    font-size: 0.875rem;
    opacity: 0.9;
    display: none;
}

@media (min-width: 768px) {
    .brand-subtitle {
        display: block;
    }
}

/* Main Navigation */
.header-nav {
    flex: 1;
    display: flex;
    justify-content: center;
}

.nav-list {
    list-style: none;
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    justify-content: center;
}

.nav-item {
    position: relative;
}

.nav-link {
    color: white;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
    font-weight: 500;
    position: relative;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.nav-link.active {
    background: rgba(255, 255, 255, 0.25);
    border-bottom: 3px solid white;
}

.nav-icon {
    font-size: 1.25rem;
}

.nav-text {
    display: none;
}

@media (min-width: 640px) {
    .nav-text {
        display: inline;
    }
}

/* User Status & Actions */
.header-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    min-width: 200px;
    justify-content: flex-end;
}

.user-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
}

.user-icon {
    font-size: 1.25rem;
}

.user-name {
    display: none;
    white-space: nowrap;
}

@media (min-width: 640px) {
    .user-name {
        display: inline;
    }
}

.btn-logout {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-lg);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-logout:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

/* ========================================
   3. MAIN CONTENT
   ======================================== */

.app-main {
    flex: 1;
    width: 100%;
}

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

/* ========================================
   4. FOOTER
   ======================================== */

.app-footer {
    background: var(--color-gray-800);
    color: white;
    padding: var(--spacing-2xl) var(--spacing-lg);
    margin-top: auto;
    border-top: 1px solid var(--color-gray-700);
}

.footer-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.footer-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.footer-title {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-gray-300);
}

.footer-text {
    font-size: 0.875rem;
    color: var(--color-gray-400);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a {
    color: var(--color-gray-300);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    border-top: 1px solid var(--color-gray-700);
    padding-top: var(--spacing-lg);
    text-align: center;
}

.footer-version {
    color: var(--color-gray-400);
    font-size: 0.75rem;
}

/* ========================================
   5. COMPONENTS - BUTTONS
   ======================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: var(--border-radius-lg);
    font-weight: 500;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-primary:hover {
    background: var(--color-primary-dark);
}

.btn-secondary {
    background: var(--color-gray-200);
    color: var(--color-gray-900);
}

.btn-secondary:hover {
    background: var(--color-gray-300);
}

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

.btn-success:hover {
    background: #15803d;
}

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

.btn-danger:hover {
    background: #b91c1c;
}

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

.btn-warning:hover {
    background: #d97706;
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
}

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* ========================================
   6. COMPONENTS - FORMS
   ======================================== */

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: var(--spacing-lg);
}

.form-label {
    font-weight: 500;
    color: var(--color-gray-700);
    font-size: 0.875rem;
}

.form-input,
.form-textarea,
.form-select {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--border-radius-lg);
    font-family: inherit;
    font-size: 0.875rem;
    transition: all 0.3s ease;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

/* ========================================
   7. COMPONENTS - CARDS
   ======================================== */

.card {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

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

.card-header {
    border-bottom: 1px solid var(--color-gray-200);
    padding-bottom: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-gray-900);
}

.card-body {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.card-footer {
    border-top: 1px solid var(--color-gray-200);
    padding-top: var(--spacing-md);
    margin-top: var(--spacing-md);
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
}

/* ========================================
   8. COMPONENTS - TABLES
   ======================================== */

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

.table thead {
    background: var(--color-gray-100);
    border-bottom: 2px solid var(--color-gray-300);
}

.table th {
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 600;
    color: var(--color-gray-700);
}

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

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

/* ========================================
   9. COMPONENTS - BADGES & STATUS
   ======================================== */

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: var(--border-radius-full);
    font-size: 0.75rem;
    font-weight: 600;
}

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

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

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

.badge-warning {
    background: var(--color-warning);
    color: white;
}

.badge-info {
    background: var(--color-info);
    color: white;
}

/* ========================================
   10. UTILITIES - MARGIN & PADDING
   ======================================== */

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.pt-1 { padding-top: var(--spacing-sm); }
.pt-2 { padding-top: var(--spacing-md); }
.pt-3 { padding-top: var(--spacing-lg); }

.pb-1 { padding-bottom: var(--spacing-sm); }
.pb-2 { padding-bottom: var(--spacing-md); }
.pb-3 { padding-bottom: var(--spacing-lg); }

/* ========================================
   11. UTILITIES - TEXT
   ======================================== */

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

.text-muted { color: var(--color-gray-500); }
.text-success { color: var(--color-success); }
.text-danger { color: var(--color-danger); }
.text-warning { color: var(--color-warning); }
.text-info { color: var(--color-info); }

.text-bold { font-weight: 600; }
.text-sm { font-size: 0.875rem; }
.text-lg { font-size: 1.125rem; }

/* ========================================
   12. RESPONSIVE DESIGN
   ======================================== */

@media (max-width: 768px) {
    .header-container {
        flex-wrap: wrap;
        gap: var(--spacing-md);
    }
    
    .nav-list {
        gap: var(--spacing-md);
    }
    
    .main-container {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .header-container {
        flex-direction: column;
    }
    
    .header-brand {
        width: 100%;
        justify-content: center;
    }
    
    .header-nav {
        width: 100%;
    }
    
    .header-user {
        width: 100%;
        justify-content: center;
        gap: var(--spacing-md);
    }
    
    .main-container {
        padding: var(--spacing-md);
    }
}