/**
 * MX User Dashboard - Modernes Stylesheet
 * 
 * Ästhetik: Clean, Professional, Modern
 * Farbschema: Slate/Indigo mit klaren Status-Farben
 */

/* =====================================================
   CSS Variables / Design Tokens
   ===================================================== */
:root {
    /* Primärfarben */
    --mx-primary: #6366f1;
    --mx-primary-hover: #4f46e5;
    --mx-primary-light: #e0e7ff;
    --mx-primary-dark: #3730a3;
    
    /* Neutralfarben */
    --mx-slate-50: #f8fafc;
    --mx-slate-100: #f1f5f9;
    --mx-slate-200: #e2e8f0;
    --mx-slate-300: #cbd5e1;
    --mx-slate-400: #94a3b8;
    --mx-slate-500: #64748b;
    --mx-slate-600: #475569;
    --mx-slate-700: #334155;
    --mx-slate-800: #1e293b;
    --mx-slate-900: #0f172a;
    
    /* Status-Farben */
    --mx-success: #10b981;
    --mx-success-light: #d1fae5;
    --mx-success-dark: #059669;
    
    --mx-warning: #f59e0b;
    --mx-warning-light: #fef3c7;
    --mx-warning-dark: #d97706;
    
    --mx-danger: #ef4444;
    --mx-danger-light: #fee2e2;
    --mx-danger-dark: #dc2626;
    
    --mx-info: #3b82f6;
    --mx-info-light: #dbeafe;
    
    /* Schatten */
    --mx-shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --mx-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --mx-shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --mx-shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --mx-shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Abstände */
    --mx-radius-sm: 6px;
    --mx-radius: 10px;
    --mx-radius-lg: 14px;
    --mx-radius-xl: 20px;
    
    /* Typografie */
    --mx-font-sans: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --mx-font-display: 'Space Grotesk', var(--mx-font-sans);
    
    /* Animationen */
    --mx-transition-fast: 150ms ease;
    --mx-transition: 200ms ease;
    --mx-transition-slow: 300ms ease;
}

/* Dark Theme */
.mx-theme-dark {
    --mx-bg: var(--mx-slate-900);
    --mx-bg-card: var(--mx-slate-800);
    --mx-bg-elevated: var(--mx-slate-700);
    --mx-text: var(--mx-slate-100);
    --mx-text-muted: var(--mx-slate-400);
    --mx-border: var(--mx-slate-700);
}

/* Light Theme (Default) */
.mx-theme-light,
.mx-dashboard {
    --mx-bg: var(--mx-slate-50);
    --mx-bg-card: #ffffff;
    --mx-bg-elevated: var(--mx-slate-100);
    --mx-text: var(--mx-slate-800);
    --mx-text-muted: var(--mx-slate-500);
    --mx-border: var(--mx-slate-200);
}

/* =====================================================
   Base / Reset
   ===================================================== */
.mx-dashboard {
    font-family: var(--mx-font-sans);
    font-size: 15px;
    line-height: 1.6;
    color: var(--mx-text);
    background: var(--mx-bg);
    padding: 32px;
    min-height: 100vh;
    box-sizing: border-box;
}

.mx-dashboard *,
.mx-dashboard *::before,
.mx-dashboard *::after {
    box-sizing: border-box;
}

.mx-dashboard h1,
.mx-dashboard h2,
.mx-dashboard h3,
.mx-dashboard h4 {
    font-family: var(--mx-font-display);
    margin: 0;
    line-height: 1.3;
}

/* =====================================================
   Header
   ===================================================== */
.mx-dashboard-header {
    margin-bottom: 32px;
}

.mx-header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}

.mx-user-greeting {
    display: flex;
    align-items: center;
    gap: 16px;
}

.mx-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    overflow: hidden;
    background: linear-gradient(135deg, var(--mx-primary-light), var(--mx-primary));
    box-shadow: var(--mx-shadow-md);
    flex-shrink: 0;
}

.mx-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.mx-greeting-text {
    display: flex;
    flex-direction: column;
}

.mx-welcome {
    font-size: 13px;
    color: var(--mx-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 500;
}

.mx-user-name {
    font-size: 28px;
    font-weight: 700;
    color: var(--mx-text);
    margin-top: 2px;
}

.mx-header-meta {
    display: flex;
    align-items: center;
    gap: 16px;
}

.mx-date {
    font-size: 14px;
    color: var(--mx-text-muted);
    background: var(--mx-bg-card);
    padding: 8px 16px;
    border-radius: var(--mx-radius);
    box-shadow: var(--mx-shadow-sm);
}

/* =====================================================
   Statistiken
   ===================================================== */
.mx-stats-section {
    margin-bottom: 32px;
}

.mx-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

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

@media (max-width: 600px) {
    .mx-stats-grid {
        grid-template-columns: 1fr;
    }
}

.mx-stat-card {
    background: var(--mx-bg-card);
    border-radius: var(--mx-radius-lg);
    padding: 20px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    box-shadow: var(--mx-shadow);
    border: 1px solid var(--mx-border);
    transition: transform var(--mx-transition), box-shadow var(--mx-transition);
    position: relative;
    overflow: hidden;
}

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

.mx-stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--mx-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.mx-stat-total .mx-stat-icon {
    background: var(--mx-info-light);
    color: var(--mx-info);
}

.mx-stat-completed .mx-stat-icon {
    background: var(--mx-success-light);
    color: var(--mx-success);
}

.mx-stat-pending .mx-stat-icon {
    background: var(--mx-warning-light);
    color: var(--mx-warning);
}

.mx-stat-overdue .mx-stat-icon {
    background: var(--mx-slate-100);
    color: var(--mx-slate-400);
}

.mx-stat-overdue.has-overdue .mx-stat-icon {
    background: var(--mx-danger-light);
    color: var(--mx-danger);
}

.mx-stat-content {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-width: 0;
}

.mx-stat-value {
    font-family: var(--mx-font-display);
    font-size: 32px;
    font-weight: 700;
    color: var(--mx-text);
    line-height: 1.1;
}

.mx-stat-label {
    font-size: 13px;
    color: var(--mx-text-muted);
    margin-top: 4px;
}

.mx-stat-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--mx-slate-100);
}

.mx-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--mx-success), var(--mx-success-dark));
    width: var(--progress);
    border-radius: 0 4px 0 0;
    transition: width 600ms ease;
}

/* =====================================================
   Filter & Suche
   ===================================================== */
.mx-filter-section {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 24px;
    padding: 16px 20px;
    background: var(--mx-bg-card);
    border-radius: var(--mx-radius-lg);
    box-shadow: var(--mx-shadow);
    border: 1px solid var(--mx-border);
}

.mx-filter-tabs {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
}

.mx-filter-tab {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    font-size: 14px;
    font-weight: 500;
    color: var(--mx-text-muted);
    background: transparent;
    border: none;
    border-radius: var(--mx-radius);
    cursor: pointer;
    transition: all var(--mx-transition);
    font-family: inherit;
}

.mx-filter-tab:hover {
    background: var(--mx-slate-100);
    color: var(--mx-text);
}

.mx-filter-tab.active {
    background: var(--mx-primary);
    color: white;
}

.mx-filter-tab.mx-filter-overdue {
    color: var(--mx-danger);
}

.mx-filter-tab.mx-filter-overdue.active {
    background: var(--mx-danger);
    color: white;
}

.mx-tab-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 22px;
    height: 22px;
    padding: 0 6px;
    font-size: 12px;
    font-weight: 600;
    background: rgba(0, 0, 0, 0.08);
    border-radius: 11px;
}

.mx-filter-tab.active .mx-tab-count {
    background: rgba(255, 255, 255, 0.25);
}

.mx-filter-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}

.mx-search-wrapper {
    position: relative;
}

.mx-search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--mx-slate-400);
    pointer-events: none;
}

.mx-search-input {
    width: 240px;
    padding: 10px 12px 10px 40px;
    font-size: 14px;
    font-family: inherit;
    border: 1px solid var(--mx-border);
    border-radius: var(--mx-radius);
    background: var(--mx-bg);
    color: var(--mx-text);
    transition: border-color var(--mx-transition), box-shadow var(--mx-transition);
}

.mx-search-input:focus {
    outline: none;
    border-color: var(--mx-primary);
    box-shadow: 0 0 0 3px var(--mx-primary-light);
}

.mx-search-input::placeholder {
    color: var(--mx-slate-400);
}

.mx-view-toggle {
    display: flex;
    gap: 4px;
    padding: 4px;
    background: var(--mx-slate-100);
    border-radius: var(--mx-radius);
}

.mx-view-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: transparent;
    border: none;
    border-radius: var(--mx-radius-sm);
    color: var(--mx-slate-500);
    cursor: pointer;
    transition: all var(--mx-transition);
}

.mx-view-btn:hover {
    color: var(--mx-text);
}

.mx-view-btn.active {
    background: var(--mx-bg-card);
    color: var(--mx-primary);
    box-shadow: var(--mx-shadow-sm);
}

/* =====================================================
   Kurskarten Grid
   ===================================================== */
.mx-courses-section {
    animation: fadeInUp 400ms ease;
}

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

.mx-courses-grid {
    display: grid;
    grid-template-columns: repeat(var(--columns, 3), 1fr);
    gap: 20px;
}

@media (max-width: 1200px) {
    .mx-courses-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .mx-courses-grid {
        grid-template-columns: 1fr;
    }
}

/* List View */
.mx-dashboard[data-layout="list"] .mx-courses-grid {
    grid-template-columns: 1fr;
    gap: 12px;
}

.mx-dashboard[data-layout="list"] .mx-course-card {
    flex-direction: row;
    align-items: center;
    padding: 16px 20px;
}

.mx-dashboard[data-layout="list"] .mx-card-header {
    order: 2;
    flex-shrink: 0;
}

.mx-dashboard[data-layout="list"] .mx-card-body {
    flex: 1;
    min-width: 0;
    padding: 0;
}

.mx-dashboard[data-layout="list"] .mx-course-title {
    font-size: 16px;
}

.mx-dashboard[data-layout="list"] .mx-course-description {
    display: none;
}

.mx-dashboard[data-layout="list"] .mx-card-footer {
    order: 3;
    padding: 0;
    border: none;
    margin-left: auto;
}

.mx-dashboard[data-layout="list"] .mx-btn-full {
    width: auto;
}

/* =====================================================
   Einzelne Kurskarte
   ===================================================== */
.mx-course-card {
    display: flex;
    flex-direction: column;
    background: var(--mx-bg-card);
    border-radius: var(--mx-radius-lg);
    box-shadow: var(--mx-shadow);
    border: 1px solid var(--mx-border);
    overflow: hidden;
    transition: transform var(--mx-transition), box-shadow var(--mx-transition), border-color var(--mx-transition);
    animation: cardFadeIn 400ms ease backwards;
}

.mx-course-card:nth-child(1) { animation-delay: 50ms; }
.mx-course-card:nth-child(2) { animation-delay: 100ms; }
.mx-course-card:nth-child(3) { animation-delay: 150ms; }
.mx-course-card:nth-child(4) { animation-delay: 200ms; }
.mx-course-card:nth-child(5) { animation-delay: 250ms; }
.mx-course-card:nth-child(6) { animation-delay: 300ms; }
.mx-course-card:nth-child(n+7) { animation-delay: 350ms; }

@keyframes cardFadeIn {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.mx-course-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--mx-shadow-lg);
}

/* Status Border Akzent */
.mx-course-card.status-completed {
    border-left: 4px solid var(--mx-success);
}

.mx-course-card.status-pending {
    border-left: 4px solid var(--mx-warning);
}

.mx-course-card.status-due-soon {
    border-left: 4px solid var(--mx-warning-dark);
}

.mx-course-card.status-overdue {
    border-left: 4px solid var(--mx-danger);
    background: linear-gradient(135deg, var(--mx-bg-card) 0%, var(--mx-danger-light) 100%);
}

/* Card Header */
.mx-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px 0;
    gap: 12px;
}

/* Status Badge */
.mx-status-badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 600;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.mx-status-badge.status-completed {
    background: var(--mx-success-light);
    color: var(--mx-success-dark);
}

.mx-status-badge.status-pending {
    background: var(--mx-warning-light);
    color: var(--mx-warning-dark);
}

.mx-status-badge.status-due-soon {
    background: var(--mx-warning-light);
    color: var(--mx-warning-dark);
}

.mx-status-badge.status-overdue {
    background: var(--mx-danger-light);
    color: var(--mx-danger-dark);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

/* Certificate Badge */
.mx-cert-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--mx-success-light);
    color: var(--mx-success);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--mx-transition);
}

.mx-cert-badge:hover {
    background: var(--mx-success);
    color: white;
    transform: scale(1.1);
}

/* Card Body */
.mx-card-body {
    padding: 16px 20px;
    flex: 1;
}

.mx-course-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--mx-text);
    margin-bottom: 8px;
    line-height: 1.4;
}

.mx-course-description {
    font-size: 14px;
    color: var(--mx-text-muted);
    margin: 0 0 16px 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.mx-course-meta {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mx-meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--mx-text-muted);
}

.mx-meta-item svg {
    flex-shrink: 0;
}

.mx-completed-date {
    color: var(--mx-success);
}

.mx-due-date.overdue {
    color: var(--mx-danger);
    font-weight: 500;
}

.mx-due-date.due-today,
.mx-due-date.due-soon {
    color: var(--mx-warning-dark);
    font-weight: 500;
}

/* Card Footer */
.mx-card-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--mx-border);
    background: var(--mx-slate-50);
}

.mx-theme-dark .mx-card-footer {
    background: var(--mx-slate-800);
}

.mx-action-buttons {
    display: flex;
    gap: 8px;
}

/* =====================================================
   Buttons
   ===================================================== */
.mx-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    font-size: 14px;
    font-weight: 600;
    font-family: inherit;
    border-radius: var(--mx-radius);
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--mx-transition);
    white-space: nowrap;
}

.mx-btn-full {
    width: 100%;
}

.mx-btn-primary {
    background: linear-gradient(135deg, var(--mx-primary) 0%, var(--mx-primary-dark) 100%);
    color: white;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.35);
}

.mx-btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.45);
}

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

.mx-btn-secondary {
    background: var(--mx-bg-card);
    color: var(--mx-text);
    border: 1px solid var(--mx-border);
}

.mx-btn-secondary:hover {
    border-color: var(--mx-primary);
    color: var(--mx-primary);
}

.mx-btn-ghost {
    background: transparent;
    color: var(--mx-text-muted);
}

.mx-btn-ghost:hover {
    background: var(--mx-slate-100);
    color: var(--mx-text);
}

/* Start Button für überfällige Kurse */
.status-overdue .mx-btn-primary {
    background: linear-gradient(135deg, var(--mx-danger) 0%, var(--mx-danger-dark) 100%);
    box-shadow: 0 2px 8px rgba(239, 68, 68, 0.35);
}

.status-overdue .mx-btn-primary:hover {
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.45);
}

/* =====================================================
   Empty State
   ===================================================== */
.mx-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 40px;
    text-align: center;
    background: var(--mx-bg-card);
    border-radius: var(--mx-radius-xl);
    border: 2px dashed var(--mx-border);
}

.mx-empty-icon {
    color: var(--mx-slate-300);
    margin-bottom: 24px;
}

.mx-empty-state h3 {
    font-size: 20px;
    color: var(--mx-text);
    margin-bottom: 8px;
}

.mx-empty-state p {
    color: var(--mx-text-muted);
    margin: 0;
}

/* =====================================================
   Login Required
   ===================================================== */
.mx-login-required {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
}

.mx-login-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 48px;
    background: var(--mx-bg-card);
    border-radius: var(--mx-radius-xl);
    box-shadow: var(--mx-shadow-lg);
    max-width: 400px;
}

.mx-login-icon {
    color: var(--mx-slate-400);
    margin-bottom: 24px;
}

.mx-login-box h2 {
    font-size: 24px;
    color: var(--mx-text);
    margin-bottom: 12px;
}

.mx-login-box p {
    color: var(--mx-text-muted);
    margin: 0 0 24px 0;
}

/* =====================================================
   Responsive Anpassungen
   ===================================================== */
@media (max-width: 768px) {
    .mx-dashboard {
        padding: 16px;
    }
    
    .mx-header-content {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .mx-user-name {
        font-size: 22px;
    }
    
    .mx-filter-section {
        flex-direction: column;
        align-items: stretch;
    }
    
    .mx-filter-tabs {
        overflow-x: auto;
        padding-bottom: 8px;
        margin-bottom: 8px;
    }
    
    .mx-filter-controls {
        flex-direction: column;
    }
    
    .mx-search-wrapper {
        width: 100%;
    }
    
    .mx-search-input {
        width: 100%;
    }
    
    .mx-view-toggle {
        align-self: flex-end;
    }
}

/* =====================================================
   Filter Animation (für gefilterte Elemente)
   ===================================================== */
.mx-course-card.hidden {
    display: none;
}

.mx-course-card.filtered-out {
    animation: filterOut 200ms ease forwards;
}

.mx-course-card.filtered-in {
    animation: filterIn 200ms ease forwards;
}

@keyframes filterOut {
    to {
        opacity: 0;
        transform: scale(0.95);
    }
}

@keyframes filterIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* =====================================================
   Scrollbar Styling
   ===================================================== */
.mx-dashboard ::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

.mx-dashboard ::-webkit-scrollbar-track {
    background: var(--mx-slate-100);
    border-radius: 4px;
}

.mx-dashboard ::-webkit-scrollbar-thumb {
    background: var(--mx-slate-300);
    border-radius: 4px;
}

.mx-dashboard ::-webkit-scrollbar-thumb:hover {
    background: var(--mx-slate-400);
}