:root {
    --primary-color: #f6821f;
    --text-color: #333;
    --bg-color: #f9f9f9;
    --card-bg: #fff;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.container {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background-color: var(--primary-color);
    color: white;
    padding: 40px 0;
    text-align: center;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

main {
    flex: 1;
    padding: 40px 0;
}

.card {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    text-align: center;
}

.card h2 {
    margin-bottom: 15px;
    color: #111;
}

.btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 10px 20px;
    font-size: 1rem;
    border-radius: 4px;
    cursor: pointer;
    margin-top: 20px;
    transition: background 0.2s;
}

.btn:hover {
    background-color: #e07015;
}

.mt-10 {
    margin-top: 15px;
    font-weight: bold;
    color: var(--primary-color);
}

footer {
    text-align: center;
    padding: 20px 0;
    background-color: #eee;
    font-size: 0.9rem;
    color: #666;
}