/* style.css */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
    color: #333;
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 900px;
    margin: 20px auto;
    padding: 30px;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
}

.header {
    text-align: center;
    margin-bottom: 25px;
}

.header h1 {
    font-size: 28px;
    color: #2c3e50;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.header h1 i {
    color: #3498db;
}

.subtitle {
    color: #666;
    font-size: 15px;
}

.alert {
    padding: 16px;
    border-radius: 8px;
    margin-bottom: 25px;
    font-size: 14px;
    display: flex;
    flex-direction: column;
}

.warning {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    color: #856404;
}

.warning i {
    color: #f39c12;
    margin-right: 8px;
}

.form {
    background: #f9fafa;
    padding: 20px;
    border-radius: 10px;
    border: 1px solid #e0e0e0;
    margin-bottom: 25px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: #2c3e50;
}

.form-row {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.form input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 15px;
    transition: border 0.3s ease;
}

.form input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: #3498db;
    outline: none;
}

.form-select {
    background: white;
    cursor: pointer;
}

.form-textarea {
    font-family: monospace;
    resize: vertical;
}

.btn-generate {
    background: #3498db;
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: 0.3s;
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 10px;
}

.btn-generate:hover {
    background: #2980b9;
    transform: translateY(-1px);
}

.card-list {
    margin-top: 20px;
}

.card-item {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    padding: 14px;
    border-radius: 6px;
    font-family: 'Courier New', monospace;
    font-size: 15px;
    transition: all 0.2s ease;
    margin-bottom: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-item:hover {
    background: #e3f2fd;
    border-color: #2196f3;
}

.card-item .copy-btn {
    background: #6c757d;
    color: white;
    border: none;
    padding: 6px 10px;
    font-size: 13px;
    border-radius: 4px;
    cursor: pointer;
}

.card-item .copy-btn:hover {
    background: #545b62;
}

.footer {
    text-align: center;
    margin-top: 40px;
    color: #6c757d;
    font-size: 14px;
    padding-top: 16px;
    border-top: 1px solid #eee;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 20px;
        margin: 10px;
    }
    .form-row {
        flex-direction: column;
        gap: 0;
    }
    .btn-generate {
        width: 100%;
        justify-content: center;
    }
}