/* 基礎重置與變數定義 */
:root {
    --primary-color: #0056b3;
    --primary-hover: #004494;
    --bg-color: #f4f4f9;
    --text-main: #333333;
    --text-muted: #666666;
    --error-color: #dc3545;
    --border-color: #cccccc;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

body.login-body {
    background-color: var(--bg-color);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.login-container {
    background: #ffffff;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    width: 100%;
    max-width: 400px;
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header h1 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.login-header p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-main);
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.password-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.toggle-btn {
    position: absolute;
    right: 10px;
    background: none;
    border: none;
    color: var(--primary-color);
    cursor: pointer;
    font-weight: bold;
    padding: 0.5rem;
}

.primary-btn {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--primary-color);
    color: #ffffff;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.2s;
}

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

.primary-btn:disabled {
    background-color: var(--border-color);
    cursor: not-allowed;
}

.error-message {
    color: var(--error-color);
    font-size: 0.85rem;
    margin-bottom: 1rem;
    text-align: center;
}

.app-logo {
    width: 120px;       /* 依據你的 LOGO 比例調整 */
    height: auto;
    margin-bottom: 1rem;
    object-fit: contain;
}