:root {
    --primary-color: #4a90e2;
    --primary-hover: #357abd;
    --background-color: #f4f7f6;
    --card-bg: #ffffff;
    --text-color: #333;
    --error-color: #e74c3c;
    --success-color: #2ecc71;
    --border-radius: 8px;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--background-color);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    color: var(--text-color);
}

.container {
    text-align: center;
    width: 100%;
    max-width: 480px;
    padding: 20px;
}

h1 {
    margin-bottom: 20px;
    font-size: 24px;
    color: #2c3e50;
}

.card {
    background-color: var(--card-bg);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 20px;
}

input[type="text"],
input[type="password"],
input[type="date"] {
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-size: 16px;
    transition: border-color 0.3s;
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="date"]:focus {
    border-color: var(--primary-color);
    outline: none;
}

button {
    padding: 12px 20px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s;
}

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

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

.message {
    margin-top: 15px;
    padding: 10px;
    border-radius: var(--border-radius);
    font-size: 14px;
}

.message.error {
    background-color: #fdecea;
    color: var(--error-color);
    border: 1px solid #fadbd8;
}

.hidden {
    display: none !important;
}

/* Result Section */
.success-icon {
    font-size: 48px;
    color: var(--success-color);
    margin-bottom: 10px;
}

.info-row {
    margin: 20px 0;
    padding: 15px;
    background-color: #f8f9fa;
    border-radius: var(--border-radius);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.label {
    font-weight: 600;
    color: #7f8c8d;
}

.value {
    font-weight: bold;
    color: #2c3e50;
}

.actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.btn {
    display: inline-block;
    text-decoration: none;
    text-align: center;
}

.download-btn {
    background-color: var(--success-color);
    color: white;
    padding: 12px;
    border-radius: var(--border-radius);
}

.download-btn:hover {
    background-color: #27ae60;
}

.secondary-btn {
    background-color: #95a5a6;
    color: white;
}

.secondary-btn:hover {
    background-color: #7f8c8d;
}

/* Spinner */
.spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 30px;
    height: 30px;
    animation: spin 1s linear infinite;
    margin: 0 auto 10px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}