:root {
    --primary: #0088cc;
    --gold: #ffd700;
    --dark: #333;
    --light: #f4f4f4;
}

body {
    font-family: 'Poppins', sans-serif;
    margin: 0;
    background: var(--light);
    color: var(--dark);
}

header {
    background: var(--primary);
    color: white;
    padding: 1rem;
    text-align: center;
}

.container {
    max-width: 800px;
    margin: 20px auto;
    padding: 20px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

h1,
h2 {
    text-align: center;
    color: var(--primary);
}

.logo {
    font-size: 2rem;
    font-weight: bold;
    color: white;
    text-decoration: none;
}

/* Grid System */
.number-grid {
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    gap: 5px;
    margin: 20px 0;
}

.num-btn {
    padding: 10px;
    background: #e0e0e0;
    border: none;
    cursor: pointer;
    border-radius: 4px;
    font-weight: bold;
}

.num-btn.taken {
    background: #ff4d4d;
    color: white;
    cursor: not-allowed;
    font-size: 0.8rem;
}

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

.num-btn:hover:not(.taken) {
    background: #88d4ff;
}

/* Winners */
.winners-box {
    background: linear-gradient(45deg, #1a2a6c, #b21f1f, #fdbb2d);
    color: white;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    margin-bottom: 20px;
}

.winner-card {
    display: inline-block;
    margin: 10px;
    padding: 10px;
    border: 2px solid var(--gold);
    border-radius: 5px;
    background: rgba(0, 0, 0, 0.3);
}

/* Forms & Payment */
input,
button.action-btn {
    width: 100%;
    padding: 12px;
    margin: 10px 0;
    border: 1px solid #ccc;
    border-radius: 5px;
}

button.action-btn {
    background: var(--primary);
    color: white;
    font-size: 1.1rem;
    cursor: pointer;
    border: none;
}

.hidden {
    display: none;
}

.telebirr-logo {
    width: 80px;
    display: block;
    margin: 0 auto;
}

footer {
    text-align: center;
    margin-top: 40px;
    padding: 20px;
    background: #222;
    color: white;
}

a {
    color: var(--gold);
}

/* Responsive */
@media (max-width: 600px) {
    .number-grid {
        grid-template-columns: repeat(5, 1fr);
    }
}