:root {
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --text-color: #f8fafc;
    --text-muted: #94a3b8;
    --input-bg: #334155;
    --border-color: #475569;
    --danger-color: #ef4444;
    --success-color: #22c55e;
}
body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
* { box-sizing: border-box; }
a { text-decoration: none; color: inherit; }
/* Login Page Only */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background: radial-gradient(circle at top right, #1e1b4b, #0f172a);
}
.login-card {
    background: rgba(30, 41, 59, 0.7);
    backdrop-filter: blur(10px);
    padding: 2.5rem;
    border-radius: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    width: 100%;
    max-width: 400px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.5);
}
.login-title {
    font-size: 1.875rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 2rem;
    background: linear-gradient(to right, #818cf8, #c084fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.form-group {
    margin-bottom: 1.5rem;
}
.form-label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
    font-size: 0.875rem;
}
.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    color: var(--text-color);
    font-size: 1rem;
    transition: border-color 0.2s;
}
.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}
.btn-primary {
    display: block;
    width: 100%;
    padding: 0.75rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}
.btn-primary:hover {
    background-color: var(--primary-hover);
}
.error-msg {
    color: var(--danger-color);
    text-align: center;
    margin-bottom: 1rem;
    font-size: 0.875rem;
}
/* Layout */
.app-container {
    display: flex;
    min-height: 100vh;
}
.sidebar {
    width: 250px;
    background-color: var(--card-bg);
    border-right: 1px solid var(--border-color);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
}
.brand {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--text-color);
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.nav-link {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--text-muted);
    border-radius: 0.5rem;
    margin-bottom: 0.5rem;
    transition: all 0.2s;
}
.nav-link:hover, .nav-link.active {
    background-color: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
}
.main-content {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
}
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}
.page-title {
    font-size: 1.5rem;
    font-weight: 600;
}
.table-container {
    background-color: var(--card-bg);
    border-radius: 1rem;
    overflow-x: auto;
    border: 1px solid var(--border-color);
}
table {
    width: 100%;
    border-collapse: collapse;
    min-width: 1000px;
}
th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}
th {
    background-color: rgba(0,0,0,0.2);
    font-weight: 600;
    color: var(--text-muted);
}
tr:last-child td {
    border-bottom: none;
}
.badge {
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}
.badge-blue { background-color: rgba(59, 130, 246, 0.2); color: #60a5fa; }
.badge-green { background-color: rgba(34, 197, 94, 0.2); color: #4ade80; }
.badge-red { background-color: rgba(239, 68, 68, 0.2); color: #f87171; }
.action-btn {
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    background-color: var(--input-bg);
    color: var(--text-color);
    font-size: 0.875rem;
    margin-right: 0.5rem;
}
.action-btn:hover { background-color: var(--border-color); }