:root {
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;
    --dark: #1f2937;
    --gray: #6b7280;
    --light-gray: #f3f4f6;
    --white: #ffffff;
    --border: #e5e7eb;
    --shadow: rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--dark);
    background-color: var(--light-gray);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Main content area pushes footer down */
.container {
    flex: 1 0 auto;
    max-width: 1400px;
    margin: 0 auto;
    padding: 30px 20px;
}

/* Login Page */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.login-container {
    width: 100%;
    max-width: 420px;
    padding: 20px;
}

.login-box {
    background: var(--white);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 20px 60px var(--shadow);
}

.logo {
    text-align: center;
    margin-bottom: 30px;
}

.logo h1 {
    font-size: 32px;
    color: var(--primary);
    margin-bottom: 5px;
}

.logo p {
    color: var(--gray);
    font-size: 14px;
}

.login-footer {
    margin-top: 20px;
    text-align: center;
}

/* Navigation */
.navbar {
    background: var(--white);
    box-shadow: 0 2px 4px var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
}

.nav-brand a {
    font-size: 24px;
    font-weight: bold;
    color: var(--primary);
    text-decoration: none;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 5px;
}

.nav-menu a {
    display: block;
    padding: 8px 16px;
    color: var(--dark);
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.2s;
}

.nav-menu a:hover {
    background: var(--light-gray);
}

.nav-menu a.active {
    background: var(--primary);
    color: var(--white);
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 10px;
    position: relative;
}

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

.user-name {
    display: block;
    font-weight: 600;
    font-size: 14px;
}

.user-role {
    display: block;
    font-size: 12px;
    color: var(--gray);
    text-transform: uppercase;
}

.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 6px;
    box-shadow: 0 4px 12px var(--shadow);
    padding: 8px 0;
    min-width: 150px;
    display: none;
}

.nav-user:hover .user-dropdown {
    display: block;
}

.user-dropdown a {
    display: block;
    padding: 8px 16px;
    color: var(--dark);
    text-decoration: none;
    transition: background 0.2s;
}

.user-dropdown a:hover {
    background: var(--light-gray);
}

/* Container */
.container {
    flex: 1 0 auto;
    max-width: 1400px;
    margin: 0 auto;
    padding: 30px 20px;
}

/* Page Header */
.page-header {
    margin-bottom: 30px;
}

.page-header h1 {
    font-size: 32px;
    margin-bottom: 5px;
}

.page-header p {
    color: var(--gray);
    font-size: 16px;
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: var(--dark);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="url"],
input[type="number"],
select,
textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 15px;
    transition: border-color 0.2s;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 20px;
    font-size: 15px;
    font-weight: 500;
    text-align: center;
    text-decoration: none;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
}

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

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

.btn-sm {
    padding: 6px 12px;
    font-size: 14px;
}

.btn-block {
    display: block;
    width: 100%;
}

/* Alerts */
.alert {
    padding: 12px 16px;
    border-radius: 6px;
    margin-bottom: 20px;
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #6ee7b7;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

.alert-warning {
    background: #fef3c7;
    color: #92400e;
    border: 1px solid #fcd34d;
}

/* Statistics Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--white);
    padding: 24px;
    border-radius: 12px;
    box-shadow: 0 2px 8px var(--shadow);
    display: flex;
    align-items: center;
    gap: 16px;
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
}

.stat-icon.blue { background: #dbeafe; }
.stat-icon.green { background: #d1fae5; }
.stat-icon.red { background: #fee2e2; }
.stat-icon.orange { background: #fed7aa; }
.stat-icon.gray { background: var(--light-gray); }

.stat-content h3 {
    font-size: 32px;
    font-weight: bold;
    margin-bottom: 4px;
}

.stat-content p {
    color: var(--gray);
    font-size: 14px;
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 20px;
}

.dashboard-section {
    background: var(--white);
    border-radius: 12px;
    box-shadow: 0 2px 8px var(--shadow);
    padding: 24px;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.section-header h2 {
    font-size: 20px;
}

/* Alerts List */
.alerts-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.alert-item {
    padding: 12px;
    border-left: 4px solid;
    background: var(--light-gray);
    border-radius: 4px;
}

.alert-item.severity-critical {
    border-left-color: var(--danger);
}

.alert-item.severity-warning {
    border-left-color: var(--warning);
}

.alert-item.severity-info {
    border-left-color: var(--info);
}

.alert-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.alert-item h4 {
    font-size: 15px;
    margin-bottom: 4px;
}

.alert-item p {
    font-size: 13px;
    color: var(--gray);
}

/* Badges */
.badge {
    display: inline-block;
    padding: 4px 10px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    border-radius: 12px;
    letter-spacing: 0.5px;
}

.badge-success { background: #d1fae5; color: #065f46; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-danger { background: #fee2e2; color: #991b1b; }
.badge-info { background: #dbeafe; color: #1e40af; }
.badge-critical { background: #fee2e2; color: #991b1b; }

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

.table thead {
    background: var(--light-gray);
}

.table th {
    padding: 12px;
    text-align: left;
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    color: var(--gray);
}

.table td {
    padding: 12px;
    border-top: 1px solid var(--border);
}

.table tbody tr:hover {
    background: var(--light-gray);
}

/* Text Utilities */
.text-muted {
    color: var(--gray);
}

.text-small {
    font-size: 13px;
}

/* Page Header Actions */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.page-header h1 {
    font-size: 32px;
    margin-bottom: 5px;
}

.page-header p {
    color: var(--gray);
    font-size: 16px;
}

.header-actions {
    display: flex;
    gap: 10px;
}

/* Card */
.card {
    background: var(--white);
    border-radius: 12px;
    box-shadow: 0 2px 8px var(--shadow);
    padding: 24px;
    margin-bottom: 20px;
}

.card h2 {
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

/* Form Styles */
.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.form-actions {
    display: flex;
    gap: 10px;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

.checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.checkbox input[type="checkbox"] {
    width: auto;
}

/* Actions Column */
.actions {
    display: flex;
    gap: 8px;
}

/* User Info Box */
.user-info-box {
    background: var(--light-gray);
    padding: 16px;
    border-radius: 8px;
    margin: 20px 0;
}

.user-info-box h4 {
    margin-bottom: 12px;
    color: var(--dark);
}

.user-info-box p {
    margin: 8px 0;
    color: var(--gray);
}

/* API Key Display */
.api-key-display {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-top: 10px;
    padding: 12px;
    background: var(--dark);
    border-radius: 6px;
}

.api-key-display code {
    flex: 1;
    color: #4ade80;
    font-size: 14px;
    font-family: 'Courier New', monospace;
    word-break: break-all;
}

.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* Text Center */
.text-center {
    text-align: center;
}

/* Footer */
.footer {
    flex-shrink: 0;
    background: var(--white);
    border-top: 1px solid var(--border);
    padding: 20px;
    margin-top: 40px;
    text-align: center;
}

.footer p {
    color: var(--gray);
    font-size: 14px;
}

/* Profile Page */
.profile-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 20px;
}

.profile-section {
    background: var(--white);
    border-radius: 12px;
    box-shadow: 0 2px 8px var(--shadow);
    padding: 24px;
}

.info-group {
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
}

.info-group:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.info-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--gray);
    margin-bottom: 6px;
    letter-spacing: 0.5px;
}

.info-value {
    font-size: 16px;
    color: var(--dark);
    margin-bottom: 4px;
}

.security-tips {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.tip-item {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.tip-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.tip-item strong {
    display: block;
    margin-bottom: 2px;
    color: var(--dark);
}

.tip-item p {
    font-size: 14px;
    color: var(--gray);
    margin: 0;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .profile-grid {
        grid-template-columns: 1fr;
    }
}