:root {
    --primary-color: #eab087;
    --accent-gold: #c7804b;
    --dark-bg: #2C241B;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: 'Noto Sans TC', sans-serif;
    background: var(--dark-bg);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.login-container {
    background: #fff;
    border-radius: 16px;
    padding: 48px 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.login-logo {
    text-align: center;
    margin-bottom: 32px;
}
.login-logo img {
    height: 60px;
    margin-bottom: 8px;
}
.login-logo p {
    color: var(--accent-gold);
    font-size: 0.9rem;
}
.form-group {
    margin-bottom: 20px;
}
.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: #444;
    margin-bottom: 6px;
}
.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid #e0d5cc;
    border-radius: 8px;
    font-size: 1rem;
    font-family: 'Noto Sans TC', sans-serif;
    outline: none;
    transition: border-color 0.2s;
}
.form-group input:focus {
    border-color: var(--primary-color);
}
.btn-login {
    width: 100%;
    padding: 14px;
    background: var(--accent-gold);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
    font-family: 'Noto Sans TC', sans-serif;
}
.btn-login:hover {
    background: #b06a38;
}
.error-msg {
    background: #fff0f0;
    border: 1px solid #f5c6cb;
    color: #721c24;
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 0.875rem;
}
.back-link {
    text-align: center;
    margin-top: 20px;
}
.back-link a {
    color: var(--accent-gold);
    text-decoration: none;
    font-size: 0.875rem;
}
.back-link a:hover {
    text-decoration: underline;
}