/* Global Reset & Variables */
:root {
    --bg-dark: #0f172a;
    --bg-card: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-primary: #3b82f6;
    --accent-hover: #2563eb;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --border: #334155;
    --font-family: 'Inter', sans-serif;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-family);
    line-height: 1.6;
    min-height: 100vh;
}

a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--accent-hover);
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

h1, h2, h3 {
    font-weight: 700;
    letter-spacing: -0.025em;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; margin-bottom: 1rem; }

/* Cards */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    padding: 1.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.card-title {
    color: var(--text-secondary);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.metric-value {
    font-size: 2rem;
    font-weight: 700;
}

/* Status Indicators */
.status-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.status-up {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.status-down {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

/* Tables */
.table-container {
    overflow-x: auto;
    background-color: var(--bg-card);
    border-radius: 0.75rem;
    border: 1px solid var(--border);
}

table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

th, td {
    padding: 1rem;
    border-bottom: 1px solid var(--border);
}

th {
    background-color: rgba(255, 255, 255, 0.02);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.875rem;
}

tr:last-child td {
    border-bottom: none;
}

tr:hover {
    background-color: rgba(255, 255, 255, 0.02);
}

/* Forms & Inputs */
.input-group {
    margin-bottom: 1rem;
}

input, select, button {
    width: 100%;
    padding: 0.75rem;
    border-radius: 0.5rem;
    border: 1px solid var(--border);
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
}

button {
    background-color: var(--accent-primary);
    border: none;
    cursor: pointer;
    font-weight: 600;
    transition: background-color 0.2s;
}

button:hover {
    background-color: var(--accent-hover);
}

/* Auth Page */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.auth-box {
    width: 100%;
    max-width: 400px;
}

/* Utilities */
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.mt-4 { margin-top: 1rem; }
.mb-4 { margin-bottom: 1rem; }

/* Loading State */
.loading {
    opacity: 0.5;
    pointer-events: none;
}

/* Suggestions */
.suggestion-item {
    border-left: 4px solid var(--accent-primary);
    padding-left: 1rem;
    margin-bottom: 1rem;
}

.suggestion-item.warning { border-color: var(--warning); }
.suggestion-item.danger { border-color: var(--danger); }