/* General Styles */
:root {
    --primary-color: #4A90E2;
    --secondary-color: #50E3C2;
    --light-bg: #F7F9FC;
    --light-surface: #FFFFFF;
    --light-text: #333333;
    --dark-bg: #121212;
    --dark-surface: #1E1E1E;
    --dark-text: #E0E0E0;
    --border-radius: 8px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    transition: background-color 0.3s, color 0.3s;
}

/* Light Mode */
body {
    background-color: var(--light-bg);
    color: var(--light-text);
}

/* Dark Mode */
body.dark-mode {
    background-color: var(--dark-bg);
    color: var(--dark-text);
}

.surface {
    background-color: var(--light-surface);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: background-color 0.3s;
}

body.dark-mode .surface {
    background-color: var(--dark-surface);
    box-shadow: 0 4px 6px rgba(0,0,0,0.2);
}

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

#sidebar {
    width: 250px;
    background-color: var(--light-surface);
    transition: background-color 0.3s;
    padding: 20px;
    box-shadow: 2px 0 5px rgba(0,0,0,0.1);
}

body.dark-mode #sidebar {
    background-color: var(--dark-surface);
    box-shadow: 2px 0 5px rgba(0,0,0,0.2);
}

#content {
    flex-grow: 1;
    padding: 2rem;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

/* Theme Switcher */
.theme-switcher {
    cursor: pointer;
}

/* Asset Table */
.asset-table {
    width: 100%;
    border-collapse: collapse;
}

.asset-table th, .asset-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

body.dark-mode .asset-table th, body.dark-mode .asset-table td {
    border-bottom: 1px solid #444;
}

.asset-table th {
    background-color: var(--light-bg);
}

body.dark-mode .asset-table th {
    background-color: var(--dark-bg);
}

.status {
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: bold;
}

.status-in-service { background-color: #d4edda; color: #155724; }
.status-under-repair { background-color: #fff3cd; color: #856404; }
.status-retired { background-color: #f8d7da; color: #721c24; }

/* Sidebar */
#sidebar .nav-link {
    color: var(--light-text);
}
body.dark-mode #sidebar .nav-link {
    color: var(--dark-text);
}
#sidebar .nav-link.active {
    color: var(--primary-color);
    font-weight: bold;
}