/* ===== static/style.css (V4 上半段版本) ===== */
body {
    background-color: #0d1b2a;
    font-family: Arial, sans-serif;
    color: #f1f1f1;
    text-align: center;
    margin-top: 50px;
}

h1 {
    color: #ffcc00;
}

button {
    padding: 10px 20px;
    font-size: 16px;
    background-color: #1b263b;
    color: #fff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    margin: 10px;
    transition: background-color 0.3s;
}

button:hover:not(:disabled) {
    background-color: #415a77;
}

button:disabled {
    background-color: #444c5e;
    cursor: not-allowed;
}

.btn-yellow {
  color: #ffd54a !important;
  border-color: #ffd54a !important;
  font-weight: 700;
}
.btn-yellow:hover {
  background: #ffd54a !important;
  color: #0f1a2b !important; /* 深色底上更清晰 */
}

.container {
    max-width: 400px;
    margin: auto;
    padding: 20px;
    background-color: #1e2a38;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.1);
}

.navbar {
    background-color: #1b263b;
    padding: 10px;
    text-align: center;
    border-radius: 10px;
    margin-bottom: 20px;
}

.navbar a {
    color: #ffcc00;
    margin: 0 15px;
    text-decoration: none;
    font-weight: bold;
}

.navbar a:hover {
    color: #fff;
}

#ad-countdown, #cooldown {
    font-size: 16px;
    margin-top: 8px;
    color: #ffa500;
    font-weight: bold;
}