* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Times New Roman', Times, serif;
    background: linear-gradient(135deg, #000000 0%, #1a1a1a 50%, #000000 100%);
    background-attachment: fixed;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.login-container {
    width: 100%;
    max-width: 450px;
    padding: 2rem;
}

.login-box {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 3rem 2.5rem;
    backdrop-filter: blur(20px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.login-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.login-header img {
    margin-bottom: 1.5rem;
    opacity: 0.95;
}

.login-header h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    font-family: 'PMingLiU-ExtB', 'MingLiU-ExtB', serif;
}

.login-header p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.95rem;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.input-field {
    width: 100%;
    padding: 1rem 1.2rem;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 10px;
    color: white;
    font-size: 0.95rem;
    font-family: inherit;
    outline: none;
    transition: all 0.3s ease;
}

.input-field::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.input-field:focus {
    border-color: rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.1);
}

.auth-btn {
    width: 100%;
    padding: 1rem 1.5rem;
    border: none;
    border-radius: 10px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
}

.google-btn {
    background: white;
    color: #333;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.google-btn:hover {
    background: rgba(255, 255, 255, 0.95);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 255, 255, 0.2);
}

.primary-btn {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.85));
    color: black;
    margin-top: 0.5rem;
}

.primary-btn:hover {
    background: linear-gradient(135deg, #ffffff, #f5f5f5);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 255, 255, 0.25);
}

.divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 0.5rem 0;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.divider span {
    padding: 0 1rem;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.85rem;
}

.signup-text {
    text-align: center;
    margin-top: 1rem;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

.signup-text a {
    color: white;
    text-decoration: none;
    font-weight: 600;
    transition: opacity 0.2s;
}

.signup-text a:hover {
    opacity: 0.8;
}

@media (max-width: 768px) {
    .login-box {
        padding: 2rem 1.5rem;
    }
}