:root {
    --bg: #f4f6f8;
    --card: #ffffff;
    --text: #1f2937;
    --muted: #6b7280;
    --accent: #4f46e5;
    --accent-hover: #4338ca;
    --border: #d1d5db;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.5;
}

.container {
    max-width: 700px;
    margin: 3rem auto;
    padding: 2rem;
    background: var(--card);
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

h1 {
    margin-top: 0;
    font-size: 2rem;
}

.subtitle {
    color: var(--muted);
    margin-bottom: 1.5rem;
}

form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

label {
    font-weight: 600;
}

input[type="text"] {
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
}

button,
.secondary-button {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    text-align: center;
}

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

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

.secondary-button {
    margin-top: 1.5rem;
    background-color: transparent;
    color: var(--accent);
    border: 2px solid var(--accent);
}

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

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

th, td {
    text-align: left;
    padding: 0.75rem;
    border-bottom: 1px solid var(--border);
}

th {
    background-color: #f9fafb;
    font-weight: 600;
}

tr:hover {
    background-color: #f9fafb;
}