.login-card {
    max-width: 480px;
    margin: 120px auto;
    position: relative;
    animation: fadeInUp 0.6s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.login-form label {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    letter-spacing: -0.01em;
    margin: 0;
}

.login-form input {
    font-size: 1rem;
    padding: 16px 20px;
    border-radius: var(--radius-xl);
    border: 2px solid rgba(31, 41, 51, 0.1);
    background: var(--gradient-glass);
    backdrop-filter: var(--blur-sm);
    transition: var(--transition-normal);
    width: 100%;
    box-sizing: border-box;
}

.login-form input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(0, 0, 0, 0.1), var(--shadow-lg);
    transform: translateY(-2px);
}

.login-form__error {
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.05));
    color: var(--color-text-primary);
    padding: 16px 20px;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(0, 0, 0, 0.2);
    font-size: 0.95rem;
    font-weight: 500;
    backdrop-filter: var(--blur-sm);
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}


/* 로그인 카드 글로우 효과 */
.login-card::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: var(--gradient-primary);
    border-radius: var(--radius-2xl);
    z-index: -1;
    opacity: 0.3;
    filter: blur(8px);
    animation: glow 3s ease-in-out infinite alternate;
}

@keyframes glow {
    from {
        opacity: 0.2;
        transform: scale(1);
    }
    to {
        opacity: 0.4;
        transform: scale(1.02);
    }
}

/* 로딩 애니메이션 */
.button--mint {
    position: relative;
    overflow: hidden;
}

.button--mint:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.button--mint:disabled::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid transparent;
    border-top: 2px solid var(--color-surface);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}