:root {
    --primary: #00d2ff;
    --primary-dark: #00a8cc;
    --secondary: #3a4750;
    --bg-dark: #0f172a;
    --bg-card: #1e293b;
    --text-main: #f1f5f9;
    --text-muted: #94a3b8;
    --accent: #2ecc71;
    --danger: #ef4444;
    --glass: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.5;
    overflow-x: hidden;
}

/* Background Gradients */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 30%, rgba(0, 210, 255, 0.05) 0%, transparent 40%),
                radial-gradient(circle at 80% 70%, rgba(46, 204, 113, 0.05) 0%, transparent 40%);
    z-index: -1;
}

/* Login Page Styles */
.login-container {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-card {
    background: var(--glass);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    padding: 40px;
    border-radius: 24px;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    text-align: center;
    animation: fadeIn 0.8s ease-out;
}

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

.logo-wrapper {
    margin-bottom: 30px;
}

.logo-text {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -1px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.input-group {
    margin-bottom: 20px;
    text-align: left;
}

.input-group label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 8px;
    padding-left: 4px;
}

.input-group input {
    width: 100%;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 12px 16px;
    color: white;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(0, 210, 255, 0.1);
    background: rgba(15, 23, 42, 0.8);
}

.btn-primary {
    width: 100%;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border: none;
    border-radius: 12px;
    padding: 14px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 210, 255, 0.3);
}

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

.error-msg {
    color: var(--danger);
    background: rgba(239, 68, 68, 0.1);
    padding: 10px;
    border-radius: 8px;
    font-size: 0.9rem;
    margin-top: 20px;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.footer-links {
    margin-top: 25px;
    font-size: 0.85rem;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: var(--primary);
}

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

.sidebar {
    width: 260px;
    background: var(--bg-card);
    border-right: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 100;
}

.sidebar-header {
    padding: 30px 20px;
    border-bottom: 1px solid var(--glass-border);
}

.sidebar-nav {
    flex: 1;
    padding: 20px 10px;
    overflow-y: auto;
}

.nav-section {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin: 20px 10px 10px 10px;
    font-weight: 700;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 12px 15px;
    color: var(--text-main);
    text-decoration: none;
    border-radius: 12px;
    transition: all 0.2s;
    margin-bottom: 4px;
    font-size: 0.9rem;
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--primary);
}

.nav-item.active {
    background: rgba(0, 210, 255, 0.1);
    color: var(--primary);
    font-weight: 600;
}

.main-content {
    flex: 1;
    margin-left: 260px;
    padding: 30px;
    background: transparent;
}

.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--bg-card);
    padding: 8px 16px;
    border-radius: 50px;
    border: 1px solid var(--glass-border);
}

.user-avatar {
    width: 32px;
    height: 32px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--bg-dark);
}

/* Widgets & Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    padding: 24px;
    border-radius: 20px;
    transition: transform 0.3s ease;
}

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

.stat-label {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 10px;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
}