:root {
    --bg-color: #121212;
    --surface-color: #1e1e1e;
    --primary-color: #bb86fc;
    --primary-hover: #9d6cdb;
    --text-color: #e0e0e0;
    --border-color: #333;
    --error-color: #cf6679;
}

body {
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.container {
    background-color: var(--surface-color);
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
    width: 100%;
    max-width: 480px;
    box-sizing: border-box;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

h2 {
    margin: 0;
    font-size: 24px;
    color: #ffffff;
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    color: #aaa;
}

select, input {
    width: 100%;
    padding: 14px;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-color);
    font-size: 16px;
    box-sizing: border-box;
    transition: border-color 0.2s;
}

select:focus, input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.time-inputs {
    display: flex;
    gap: 16px;
}

.time-inputs .form-group {
    flex: 1;
}

button {
    width: 100%;
    padding: 16px;
    background-color: var(--primary-color);
    color: #000;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s;
}

button:hover { background-color: var(--primary-hover); }
button:active { transform: scale(0.98); }

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    width: auto;
    padding: 8px 16px;
    font-size: 14px;
}
.btn-secondary:hover {
    background-color: rgba(187, 134, 252, 0.1);
}

.error-msg {
    color: var(--error-color);
    font-size: 14px;
    text-align: center;
    min-height: 20px;
    margin-top: -10px;
    margin-bottom: 10px;
}