/* Modern UI with Professional Green Theme */
:root {
    --primary-green: #2E7D32;
    --medium-green: #4CAF50;
    --light-green: #C8E6C9;
    --accent-green: #1B5E20;
    
    --primary-gradient: linear-gradient(135deg, var(--primary-green) 0%, var(--accent-green) 100%);
    --secondary-gradient: linear-gradient(135deg, var(--medium-green) 0%, var(--primary-green) 100%);
    --success-gradient: linear-gradient(135deg, var(--medium-green) 0%, #66BB6A 100%);
    --warning-gradient: linear-gradient(135deg, #FFA726 0%, #FF9800 100%);
    --danger-gradient: linear-gradient(135deg, #E53935 0%, #D32F2F 100%);
    
    --sidebar-bg: var(--accent-green);
    --sidebar-text: #ecf0f1;
    --sidebar-active: var(--medium-green);
    
    --main-bg: linear-gradient(135deg, var(--light-green) 0%, #E8F5E8 100%);
    --card-bg: rgba(255, 255, 255, 0.95);
    --text-primary: #2d3436;
    --text-secondary: #636e72;
    
    --border-radius: 12px;
    --shadow: 0 4px 25px 0 rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 8px 35px 0 rgba(0, 0, 0, 0.15);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--main-bg);
    min-height: 100vh;
    color: var(--text-primary);
}

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

/* Sidebar */
.sidebar {
    width: 280px;
    background: var(--sidebar-bg);
    color: var(--sidebar-text);
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    transition: all 0.3s ease;
    z-index: 1000;
}

.sidebar-header {
    padding: 2rem;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.logo-image {
    width: 120px;
    height: auto;
    max-width: 90%;
    object-fit: contain;
    border-radius: 8px;
    background: transparent;
    padding: 8px;
    filter: brightness(1.2) contrast(1.1);
    transition: transform 0.3s ease;
}

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

.user-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 1rem;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--sidebar-active);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.nav-menu {
    list-style: none;
    padding: 1rem 0;
}

.nav-item {
    margin: 0.2rem 1rem;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 1rem;
    color: var(--sidebar-text);
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
    gap: 1rem;
}

.nav-link:hover,
.nav-link.active {
    background: var(--sidebar-active);
    transform: translateX(5px);
}

.nav-icon {
    font-size: 1.2rem;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 280px;
    padding: 2rem;
    transition: margin-left 0.3s ease;
}

/* Header */
.page-header {
    display: flex;
    justify-content: between;
    align-items: center;
    margin-bottom: 2rem;
    background: var(--card-bg);
    padding: 1.5rem 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.page-title {
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* Modern Header Styles */
.modern-header {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.modern-header .header-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 2rem;
}

.modern-header .header-text {
    flex: 1;
}

.modern-header .page-title {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.modern-header .title-gradient {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.modern-header .welcome-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.modern-header .user-name {
    color: var(--text-primary);
    font-weight: 600;
}

.modern-header .session-info {
    display: flex;
    gap: 2rem;
    margin-top: 1rem;
}

.modern-header .session-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.modern-header .session-label {
    color: var(--text-secondary);
}

.modern-header .online-time,
.modern-header .current-date {
    font-weight: 600;
    color: var(--text-primary);
}

.modern-header .header-stats {
    display: flex;
    align-items: center;
    justify-content: flex-end;
}

.modern-header .quick-stats {
    display: flex;
    gap: 2rem;
}

.modern-header .quick-stat {
    text-align: center;
}

.modern-header .stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.modern-header .stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.live-clock {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient);
}

.stat-value {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Category Cards (inspired by cloud.png) */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.category-card {
    background: var(--card-bg);
    padding: 1rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.category-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.category-card.pictures { background: var(--primary-gradient); color: white; }
.category-card.documents { background: var(--secondary-gradient); color: white; }
.category-card.videos { background: var(--success-gradient); color: white; }
.category-card.audio { background: linear-gradient(135deg, var(--medium-green) 0%, var(--light-green) 100%); color: var(--accent-green); }

.category-icon {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.category-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.category-count {
    font-size: 0.8rem;
    opacity: 0.8;
}

/* Forms */
.form-container {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-bottom: 0.75rem;
}

.form-group {
    margin-bottom: 0.75rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid #e9ecef;
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--medium-green);
    box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.1);
}

.btn {
    padding: 0.875rem 2rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

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

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

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

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

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

/* Tables */
.table-container {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #e9ecef;
}

.table th {
    background: #f8f9fa;
    font-weight: 600;
    color: var(--text-primary);
}

.table tbody tr:hover {
    background: #f8f9fa;
}

/* Chart Container */
.chart-container {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

/* Flash Messages */
.flash-messages {
    position: fixed;
    top: 2rem;
    right: 2rem;
    z-index: 9999;
}

.flash-message {
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 0.5rem;
    color: white;
    font-weight: 500;
    box-shadow: var(--shadow);
    animation: slideInRight 0.3s ease;
}

.flash-success {
    background: var(--success-gradient);
}

.flash-error {
    background: var(--danger-gradient);
}

.flash-info {
    background: var(--primary-gradient);
}

.flash-warning {
    background: var(--warning-gradient);
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        margin-left: -280px;
    }
    
    .sidebar.open {
        margin-left: 0;
    }
    
    .main-content {
        margin-left: 0;
        padding: 1rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
}

/* Login Page */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--main-bg);
}

.login-card {
    background: var(--card-bg);
    padding: 3rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    width: 100%;
    max-width: 400px;
}

.login-title {
    text-align: center;
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 2rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Dark Mode Support */
.dark-mode {
    --card-bg: rgba(45, 52, 54, 0.95);
    --text-primary: #ddd;
    --text-secondary: #b2bec3;
}

.dark-mode .sidebar {
    background: #1a252f;
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

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

/* Compact Header and Stats for Dashboard */
.compact-header {
    padding: 0.75rem 2rem !important;
    min-height: auto !important;
}

.compact-header .header-content {
    padding: 0 !important;
}

.compact-header .page-title {
    font-size: 1.5rem !important;
    margin-bottom: 0.25rem !important;
}

.compact-header .welcome-text {
    font-size: 0.9rem !important;
    margin-bottom: 0.25rem !important;
}

.month-stats {
    display: flex;
    gap: 2rem;
}

.month-stat {
    text-align: center;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.month-label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.month-value {
    display: block;
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--primary-green);
}

.month-unit {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.compact-stats {
    margin-top: 0.5rem !important;
    margin-bottom: 0.75rem !important;
}

.compact-stats .stat-card {
    padding: 0.75rem !important;
}

.compact-stats .stat-value {
    font-size: 1.3rem !important;
}

/* Dashboard Specific Compact Styles */
#entry-form .form-group {
    margin-bottom: 0.5rem !important;
}

#entry-form .form-label {
    margin-bottom: 0.25rem !important;
    font-size: 0.9rem !important;
}

#entry-form .form-control {
    padding: 0.4rem 0.75rem !important;
    font-size: 0.95rem !important;
}

#entry-form textarea.form-control {
    min-height: 45px !important;
    max-height: 70px !important;
}

/* View Buttons for Chart Navigation */
.view-buttons {
    display: flex;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.9);
    padding: 0.25rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.view-btn {
    padding: 0.5rem 1rem;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.view-btn:hover {
    background: var(--light-green);
    color: var(--primary-green);
}

.view-btn.active {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 2px 8px rgba(46, 125, 50, 0.3);
}

.view-btn i {
    font-size: 0.9rem;
}

/* Enhanced Category Cards with Scanning Style */
.category-card.scanning {
    background: linear-gradient(135deg, var(--medium-green) 0%, var(--primary-green) 100%);
    color: white;
}

.category-card.scanning:hover {
    transform: translateY(-5px) scale(1.02);
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--accent-green) 100%);
}

/* Selected Category Card */
.category-card.selected {
    box-shadow: 0 0 0 3px var(--medium-green), 0 8px 32px rgba(76, 175, 80, 0.3);
    transform: scale(1.05);
}

/* Compact Table Style */
.compact-table {
    font-size: 0.9rem;
}

.compact-table table {
    width: 100%;
}

.compact-table th,
.compact-table td {
    padding: 0.5rem 0.75rem !important;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.compact-table td:last-child {
    max-width: 100px;
}

/* Enhanced Description Field */
textarea.form-control {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.5;
    padding: 0.75rem;
}

textarea.form-control:focus {
    border-color: var(--medium-green);
    box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.1);
}