/* ===============================================
   MAIN.CSS - VOLLSTÄNDIGE KORRIGIERTE VERSION MIT FIXES
   =============================================== */

/* SynChroniq Professional - Main Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --accent-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --success-gradient: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    --warning-gradient: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    --danger-gradient: linear-gradient(135deg, #ff9a9e 0%, #fecfef 100%);
    
    /* Background */
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #667eea 100%);
    
    /* KORREKTUR: Card-Hintergründe sind jetzt weiß und opak */
    --card-bg: rgba(255, 255, 255, 0.95);
    --card-bg-solid: #ffffff;
    --card-shadow: 0 8px 32px rgba(102, 126, 234, 0.15);
    --card-shadow-hover: 0 12px 40px rgba(102, 126, 234, 0.25);
    
    /* Text Colors */
    --text-primary: #2c3e50;
    --text-secondary: #7f8c8d;
    --text-light: #ffffff;
    --text-muted: #95a5a6;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    
    /* Transitions */
    --transition-fast: 0.2s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
    
    /* Shadows */
    --shadow-light: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 16px rgba(0, 0, 0, 0.15);
    --shadow-heavy: 0 8px 32px rgba(0, 0, 0, 0.2);
    
    /* Font Sizes */
    --font-xs: 0.75rem;
    --font-sm: 0.875rem;
    --font-base: 1rem;
    --font-lg: 1.125rem;
    --font-xl: 1.25rem;
    --font-xxl: 1.5rem;
    --font-xxxl: 2rem;
}

/* Base Styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg-gradient);
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ===============================================
   SCREEN STYLES
   =============================================== */

.app-container {
    min-height: 100vh;
    position: relative;
    z-index: 1;
}

.screen {
    display: none;
    min-height: 100vh;
    padding: var(--spacing-xl);
    position: relative;
}

.screen.active {
    display: block;
}

.screen-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xl) 0;
}

/* ===============================================
   CARD STYLES
   =============================================== */

.card {
    background: var(--card-bg-solid) !important;
    border-radius: var(--radius-lg);
    padding: var(--spacing-xxl);
    box-shadow: var(--card-shadow);
    border: 1px solid rgba(102, 126, 234, 0.1);
    margin-bottom: var(--spacing-xl);
    transition: all var(--transition-normal);
}

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

.license-card {
    max-width: 600px;
    margin: 0 auto;
}

/* KORREKTUR: Login-Card Breite für 3 Tabs angepasst */
.login-card {
    background: #ffffff !important;
    max-width: 950px !important; /* Erhöht von 800px auf 950px */
    z-index: 10;
    margin: 0 auto;
}

/* Logo Container */
.logo-container {
    text-align: center;
    margin-bottom: var(--spacing-xxl);
}

.logo {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
    display: block;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-medium);
}

.app-title {
    font-size: var(--font-xxxl);
    font-weight: 700;
    color: var(--text-light);
    margin-bottom: var(--spacing-sm);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.app-subtitle {
    font-size: var(--font-lg);
    color: rgba(255, 255, 255, 0.9);
    font-weight: 300;
    letter-spacing: 2px;
}

/* ===============================================
   KORREKTUR: TABS LAYOUT FÜR 3 TABS OPTIMIERT
   =============================================== */

.tab-container {
    margin-top: var(--spacing-xl);
}

.tabs {
    display: flex;
    border-bottom: 2px solid rgba(102, 126, 234, 0.1);
    margin-bottom: var(--spacing-xl);
    overflow-x: auto; /* KORREKTUR: Scroll bei kleinen Bildschirmen */
}

.tab-btn {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    background: #f8f9fa !important;
    color: #6c757d !important;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    position: relative;
    white-space: nowrap;
    min-width: 180px; /* KORREKTUR: Erhöht von 150px auf 180px */
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    margin-right: 2px;
    font-size: var(--font-sm); /* KORREKTUR: Kleinere Schrift für bessere Passform */
}

.tab-btn:hover {
    color: #495057 !important;
    background: #e9ecef !important;
    transform: translateY(-2px);
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.15);
}

.tab-btn.active {
    color: #ffffff !important;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
    transform: translateY(-1px);
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: #667eea;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* ===============================================
   KORREKTUR: DASHBOARD STYLES
   =============================================== */

.dashboard {
    padding: 0;
    background: var(--bg-gradient);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.dashboard-header {
    background: #ffffff !important;
    box-shadow: var(--shadow-light);
    border-bottom: 1px solid rgba(102, 126, 234, 0.1);
    padding: var(--spacing-md) var(--spacing-xl);
    z-index: 100;
    position: relative;
    color: #2c3e50 !important;
}

.dashboard-header h2 {
    color: #2c3e50 !important;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1400px;
    margin: 0 auto;
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.header-logo {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
}

.header-left h2 {
    color: var(--text-primary);
    font-size: var(--font-xl);
    margin: 0;
}

.header-center {
    flex: 1;
    display: flex;
    justify-content: center;
}

.current-time {
    font-size: var(--font-lg);
    font-weight: 600;
    color: var(--text-light);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--primary-gradient);
    border-radius: var(--radius-sm);
    min-width: 120px;
    text-align: center;
    box-shadow: var(--shadow-light);
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.user-info {
    text-align: right;
}

.user-name {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    font-size: var(--font-base);
}

.user-status {
    font-size: var(--font-sm);
    color: var(--text-secondary);
}

/* ===============================================
   KORREKTUR: LOGOUT-BUTTON SICHTBAR UND FUNKTIONAL
   =============================================== */

.logout-btn {
    width: 50px !important;
    height: 50px !important;
    border-radius: 50% !important;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    border: none !important;
    color: #ffffff !important;
    cursor: pointer !important;
    transition: all var(--transition-fast) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-size: var(--font-lg) !important;
    box-shadow: var(--shadow-light) !important;
    opacity: 1 !important;
    visibility: visible !important;
    z-index: 1000 !important;
}

.logout-btn:hover {
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%) !important;
    transform: scale(1.1) !important;
    box-shadow: var(--shadow-medium) !important;
}

.logout-btn i {
    color: #ffffff !important;
    font-size: var(--font-lg) !important;
}

/* ===============================================
   KORREKTUR: NAVIGATION STYLES MIT HOVER-EFFEKTEN
   =============================================== */

.dashboard-nav {
    background: #ffffff !important;
    padding: var(--spacing-md) var(--spacing-xl);
    border-bottom: 1px solid rgba(102, 126, 234, 0.1);
    display: flex;
    gap: var(--spacing-sm);
    overflow-x: auto;
    z-index: 99;
    position: relative;
}

.nav-btn {
    padding: var(--spacing-md) var(--spacing-lg) !important;
    border: none !important;
    background: transparent !important;
    color: #7f8c8d !important;
    cursor: pointer !important;
    border-radius: var(--radius-sm) !important;
    transition: all var(--transition-fast) !important;
    font-weight: 500 !important;
    white-space: nowrap !important;
    display: flex !important;
    align-items: center !important;
    gap: var(--spacing-sm) !important;
    position: relative !important;
    min-width: auto !important;
    font-size: var(--font-base) !important;
}

/* KORREKTUR: Dashboard-Navigation Hover-Effekte - Lila Gradienten */
.nav-btn:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    color: #ffffff !important;
    transform: translateY(-2px) !important;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3) !important;
}

.nav-btn.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    color: #ffffff !important;
    box-shadow: var(--shadow-light) !important;
}

.nav-btn.active::after {
    content: '';
    position: absolute;
    bottom: -17px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-top: 8px solid #667eea;
}

/* KORREKTUR: Icons in Navigation skalieren bei Hover */
.nav-btn:hover i {
    transform: scale(1.2);
    transition: all var(--transition-fast);
}

/* ===============================================
   MAIN CONTENT
   =============================================== */

.dashboard-content {
    flex: 1;
    padding: var(--spacing-xl);
    overflow-y: auto;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
    background: transparent;
    position: relative;
    z-index: 1;
}

.content-section {
    display: none !important;
}

.content-section.active {
    display: block !important;
}

.section-header {
    margin-bottom: var(--spacing-xl);
}

.section-header h3 {
    font-size: var(--font-xxl);
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* ===============================================
   KORREKTUR: STATISTICS CARDS - VOLLSTÄNDIG
   =============================================== */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: #ffffff !important;
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    box-shadow: var(--card-shadow);
    transition: all var(--transition-normal);
    border: 1px solid rgba(102, 126, 234, 0.1);
    position: relative;
    overflow: hidden;
    z-index: 2;
    color: #2c3e50 !important;
}

.stat-card h4 {
    color: #7f8c8d !important;
}

.stat-value {
    color: #2c3e50 !important;
    font-weight: 700 !important;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary-gradient);
}

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

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: var(--font-xl);
    box-shadow: var(--shadow-medium);
    position: relative;
    overflow: hidden;
}

/* KORREKTUR: Farbige Icon-Hintergründe für verschiedene Stats */
.stat-card:nth-child(1) .stat-icon {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
}

.stat-card:nth-child(2) .stat-icon {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%) !important;
}

.stat-card:nth-child(3) .stat-icon {
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%) !important;
}

.stat-card:nth-child(4) .stat-icon {
    background: linear-gradient(135deg, #ff9a9e 0%, #fecfef 100%) !important;
}

/* KORREKTUR: Shine-Animation für Icons */
.stat-icon::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.1), transparent);
    transform: rotate(45deg);
    animation: shine 3s infinite;
}

@keyframes shine {
    0% { transform: translateX(-100%) rotate(45deg); }
    50% { transform: translateX(100%) rotate(45deg); }
    100% { transform: translateX(-100%) rotate(45deg); }
}

.stat-content h4 {
    margin: 0 0 var(--spacing-sm) 0;
    color: #6c757d !important;
    font-size: var(--font-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value {
    font-size: var(--font-xxl);
    font-weight: 700;
    color: #2c3e50 !important;
    font-family: monospace;
}

/* ===============================================
   BUTTON STYLES
   =============================================== */

.btn {
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: var(--radius-sm);
    font-size: var(--font-base);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    position: relative;
    overflow: hidden;
    min-width: 120px;
    z-index: 1;
}

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

.btn-primary {
    background: var(--primary-gradient);
    color: var(--text-light);
    box-shadow: var(--shadow-light);
}

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

.btn-secondary {
    background: var(--secondary-gradient);
    color: var(--text-light);
    box-shadow: var(--shadow-light);
}

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

.btn-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: var(--text-light);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-lg);
    backdrop-filter: blur(10px);
}

.btn-icon:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

/* ===============================================
   KORREKTUR: INPUT-FELDER FIXES
   =============================================== */

.form-group input,
.form-group select,
.form-group textarea,
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="tel"],
input[type="url"],
select,
textarea {
    background: #ffffff !important;
    color: #2c3e50 !important;
    border: 2px solid rgba(102, 126, 234, 0.2) !important;
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    font-size: var(--font-base);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus,
input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="number"]:focus,
input[type="tel"]:focus,
input[type="url"]:focus,
select:focus,
textarea:focus {
    background: #ffffff !important;
    color: #2c3e50 !important;
    border-color: #667eea !important;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1) !important;
    outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder,
input::placeholder,
textarea::placeholder {
    color: #95a5a6 !important;
}

/* ===============================================
   KORREKTUR: MODAL-INHALTE WEIS
   =============================================== */

.modal-content,
.modal-header,
.modal-body,
.modal-footer {
    background: #ffffff !important;
    color: #2c3e50 !important;
}

/* ===============================================
   KORREKTUR: FORM-VALIDIERUNG SICHTBAR
   =============================================== */

.form-group input.valid {
    border-color: #43e97b !important;
    box-shadow: 0 0 0 3px rgba(67, 233, 123, 0.1) !important;
}

.form-group input.invalid {
    border-color: #ff9a9e !important;
    box-shadow: 0 0 0 3px rgba(255, 154, 158, 0.1) !important;
}

/* ===============================================
   KORREKTUR: LOADING STYLES
   =============================================== */

.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-spinner {
    text-align: center;
    color: var(--text-light);
}

.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid #ffffff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-lg);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

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

@media (max-width: 768px) {
    .login-card {
        max-width: 95% !important;
        margin: var(--spacing-md);
    }
    
    .tabs {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .tab-btn {
        min-width: auto !important;
        margin-right: 0 !important;
        border-radius: var(--radius-sm) !important;
    }
    
    .logout-btn {
        width: 40px !important;
        height: 40px !important;
    }
}

/* ===============================================
   SCREEN MANAGEMENT - SICHERHEITSKRITISCH
   =============================================== */

/* Alle Screens initial versteckt */
.screen {
    display: none !important;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.screen.active {
    display: block !important;
    opacity: 1;
}

/* Dashboard speziell - muss flex sein wenn aktiv */
#employee-dashboard {
    display: none !important;
}

#employee-dashboard.active {
    display: flex !important;
    flex-direction: column;
}

/* Content Sections innerhalb des Dashboards */
.content-section {
    display: none !important;
}

.content-section.active {
    display: block !important;
}