:root {
    --bg-main: #1e1e1e;
    --bg-card: #252526;
    --bg-header: #333333;
    --text-main: #e0e0e0;
    --text-muted: #aaaaaa;
    --border-color: #444444;
    --primary: #007acc;
    --primary-hover: #005f9e;
    --success: #4caf50;
    --danger: #f44336;
    --badge-bg: #444444;
}

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background-color: var(--bg-card);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 15px;
    margin-bottom: 10px;
}

h1 {
    margin: 0;
    font-size: 28px;
    font-weight: 700;
}

.subtitle {
    color: var(--text-muted);
    font-size: 14px;
    margin-top: 0;
    margin-bottom: 25px;
}

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

button {
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    transition: background-color 0.2s;
}

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

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

.btn-secondary {
    background-color: var(--badge-bg);
    color: white;
}

.btn-secondary:hover {
    background-color: #555555;
}

.table-container {
    overflow-x: auto;
}

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

thead {
    background-color: var(--bg-header);
}

th, td {
    padding: 12px 15px;
    border-bottom: 1px solid var(--border-color);
}

th {
    font-weight: 600;
    font-size: 14px;
    color: #ffffff;
}

tr:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.phone-col {
    color: #4fc3f7; /* Light blue like the screenshot */
    font-weight: 500;
}

.otp-col {
    font-weight: bold;
    color: var(--success);
}

.otp-col.empty {
    color: var(--text-muted);
    font-weight: normal;
}

.badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: bold;
    background-color: var(--badge-bg);
}

.badge.reset {
    color: #ff9800;
}

.content-col {
    max-width: 400px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.grid-container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 20px;
}

.card {
    background: #2a2a2b;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.card h2 {
    margin-top: 0;
    font-size: 18px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

.form-group input {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    background: #1e1e1e;
    border: 1px solid var(--border-color);
    color: white;
    border-radius: 4px;
    box-sizing: border-box;
}

.btn-danger {
    background-color: var(--danger);
    color: white;
    padding: 4px 8px;
    font-size: 12px;
}

.btn-danger:hover {
    background-color: #d32f2f;
}